WO2016061527A1 - Compositions et méthodes pour traiter des troubles du snc - Google Patents

Compositions et méthodes pour traiter des troubles du snc Download PDF

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Publication number
WO2016061527A1
WO2016061527A1 PCT/US2015/056054 US2015056054W WO2016061527A1 WO 2016061527 A1 WO2016061527 A1 WO 2016061527A1 US 2015056054 W US2015056054 W US 2015056054W WO 2016061527 A1 WO2016061527 A1 WO 2016061527A1
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hydrogen
alkyl
compound
substituted
unsubstituted
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PCT/US2015/056054
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English (en)
Inventor
Gabriel Martinez Botella
Francesco G. Salituro
Albert Jean Robichaud
Boyd L. Harrison
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Sage Therapeutics, Inc.
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Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=55747445&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2016061527(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority to AU2015331749A priority Critical patent/AU2015331749A1/en
Priority to KR1020177013004A priority patent/KR102612943B1/ko
Priority to US15/519,480 priority patent/US10577390B2/en
Priority to MX2021004492A priority patent/MX2021004492A/es
Priority to JP2017520471A priority patent/JP6909155B2/ja
Priority to EP15851530.4A priority patent/EP3206494A4/fr
Priority to KR1020237042099A priority patent/KR20230170816A/ko
Priority to BR112017007902-0A priority patent/BR112017007902B1/pt
Priority to MX2017005002A priority patent/MX2017005002A/es
Priority to RU2017116732A priority patent/RU2733756C2/ru
Priority to MYPI2017000555A priority patent/MY190408A/en
Application filed by Sage Therapeutics, Inc. filed Critical Sage Therapeutics, Inc.
Priority to EP21160969.8A priority patent/EP3885352A1/fr
Priority to NZ731034A priority patent/NZ731034A/en
Priority to CN202310812016.1A priority patent/CN117024501A/zh
Priority to CN201580067540.4A priority patent/CN107404877A/zh
Priority to SG11201703073UA priority patent/SG11201703073UA/en
Priority to CA2964766A priority patent/CA2964766A1/fr
Priority to CN202310824285.XA priority patent/CN117024502A/zh
Publication of WO2016061527A1 publication Critical patent/WO2016061527A1/fr
Priority to IL251721A priority patent/IL251721B/en
Priority to PH12017500711A priority patent/PH12017500711A1/en
Priority to CONC2017/0004649A priority patent/CO2017004649A2/es
Priority to US16/206,472 priority patent/US20190177358A1/en
Priority to US16/748,117 priority patent/US11530237B2/en
Priority to AU2020202892A priority patent/AU2020202892B2/en
Priority to AU2021218132A priority patent/AU2021218132B2/en
Priority to US17/695,033 priority patent/US11542297B2/en
Priority to US17/694,896 priority patent/US20220213137A1/en
Priority to IL291533A priority patent/IL291533A/en
Priority to US17/971,865 priority patent/US20230113666A1/en
Priority to AU2024202959A priority patent/AU2024202959A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
    • A61K31/57—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane or progesterone
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J43/00—Normal steroids having a nitrogen-containing hetero ring spiro-condensed or not condensed with the cyclopenta(a)hydrophenanthrene skeleton
    • C07J43/003—Normal steroids having a nitrogen-containing hetero ring spiro-condensed or not condensed with the cyclopenta(a)hydrophenanthrene skeleton not condensed
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
    • A61K31/575—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids substituted in position 17 beta by a chain of three or more carbon atoms, e.g. cholane, cholestane, ergosterol, sitosterol
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
    • A61K31/58—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids containing heterocyclic rings, e.g. danazol, stanozolol, pancuronium or digitogenin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K45/00—Medicinal preparations containing active ingredients not provided for in groups A61K31/00 - A61K41/00
    • A61K45/06—Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P23/00—Anaesthetics
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00—Drugs for disorders of the nervous system
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00—Drugs for disorders of the nervous system
    • A61P25/06—Antimigraine agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00—Drugs for disorders of the nervous system
    • A61P25/08—Antiepileptics; Anticonvulsants
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00—Drugs for disorders of the nervous system
    • A61P25/14—Drugs for disorders of the nervous system for treating abnormal movements, e.g. chorea, dyskinesia
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00—Drugs for disorders of the nervous system
    • A61P25/18—Antipsychotics, i.e. neuroleptics; Drugs for mania or schizophrenia
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00—Drugs for disorders of the nervous system
    • A61P25/20—Hypnotics; Sedatives
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00—Drugs for disorders of the nervous system
    • A61P25/28—Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J7/00—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J9/00—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of more than two carbon atoms, e.g. cholane, cholestane, coprostane
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J1/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, not substituted in position 17 beta by a carbon atom, e.g. estrane, androstane
    • C07J1/0003—Androstane derivatives
    • C07J1/0011—Androstane derivatives substituted in position 17 by a keto group
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J1/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, not substituted in position 17 beta by a carbon atom, e.g. estrane, androstane
    • C07J1/0003—Androstane derivatives
    • C07J1/0018—Androstane derivatives substituted in position 17 beta, not substituted in position 17 alfa
    • C07J1/0022—Androstane derivatives substituted in position 17 beta, not substituted in position 17 alfa the substituent being an OH group free esterified or etherified
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J11/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, not substituted in position 3
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J13/00—Normal steroids containing carbon, hydrogen, halogen or oxygen having a carbon-to-carbon double bond from or to position 17
    • C07J13/007—Normal steroids containing carbon, hydrogen, halogen or oxygen having a carbon-to-carbon double bond from or to position 17 with double bond in position 17 (20)
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J21/00—Normal steroids containing carbon, hydrogen, halogen or oxygen having an oxygen-containing hetero ring spiro-condensed with the cyclopenta(a)hydrophenanthrene skeleton
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J3/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, substituted in position 17 beta by one carbon atom
    • C07J3/005—Normal steroids containing carbon, hydrogen, halogen or oxygen, substituted in position 17 beta by one carbon atom the carbon atom being part of a carboxylic function
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J31/00—Normal steroids containing one or more sulfur atoms not belonging to a hetero ring
    • C07J31/006—Normal steroids containing one or more sulfur atoms not belonging to a hetero ring not covered by C07J31/003
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J41/00—Normal steroids containing one or more nitrogen atoms not belonging to a hetero ring
    • C07J41/0033—Normal steroids containing one or more nitrogen atoms not belonging to a hetero ring not covered by C07J41/0005
    • C07J41/0066—Normal steroids containing one or more nitrogen atoms not belonging to a hetero ring not covered by C07J41/0005 the 17-beta position being substituted by a carbon atom forming part of an amide group
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J5/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane and substituted in position 21 by only one singly bound oxygen atom, i.e. only one oxygen bound to position 21 by a single bond
    • C07J5/0046—Normal steroids containing carbon, hydrogen, halogen or oxygen, substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane and substituted in position 21 by only one singly bound oxygen atom, i.e. only one oxygen bound to position 21 by a single bond substituted in position 17 alfa
    • C07J5/0053—Normal steroids containing carbon, hydrogen, halogen or oxygen, substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane and substituted in position 21 by only one singly bound oxygen atom, i.e. only one oxygen bound to position 21 by a single bond substituted in position 17 alfa not substituted in position 16
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J51/00—Normal steroids with unmodified cyclopenta(a)hydrophenanthrene skeleton not provided for in groups C07J1/00 - C07J43/00
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J7/00—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms
    • C07J7/0005—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms not substituted in position 21
    • C07J7/001—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms not substituted in position 21 substituted in position 20 by a keto group
    • C07J7/0015—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms not substituted in position 21 substituted in position 20 by a keto group not substituted in position 17 alfa
    • C07J7/002—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms not substituted in position 21 substituted in position 20 by a keto group not substituted in position 17 alfa not substituted in position 16
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J7/00—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms
    • C07J7/0005—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms not substituted in position 21
    • C07J7/0065—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms not substituted in position 21 substituted in position 20 by an OH group free esterified or etherified
    • C07J7/007—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms not substituted in position 21 substituted in position 20 by an OH group free esterified or etherified not substituted in position 17 alfa
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J7/00—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms
    • C07J7/008—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms substituted in position 21
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J71/00—Steroids in which the cyclopenta(a)hydrophenanthrene skeleton is condensed with a heterocyclic ring
    • C07J71/0005—Oxygen-containing hetero ring
    • C07J71/001—Oxiranes

Definitions

  • Brain excitability is defined as the level of arousal of an animal, a continuum that ranges from coma to convulsions, and is regulated by various neurotransmitters.
  • neurotransmitters are responsible for regulating the conductance of ions across neuronal membranes.
  • the neuronal membrane possesses a potential (or membrane voltage) of approximately–70 mV, the cell interior being negative with respect to the cell exterior.
  • the potential (voltage) is the result of ion (K + , Na + , Cl – , organic anions) balance across the neuronal semipermeable membrane.
  • Neurotransmitters are stored in presynaptic vesicles and are released under the influence of neuronal action potentials.
  • an excitatory chemical transmitter such as acetylcholine will cause membrane depolarization, e.g., a change of potential from–70 mV to–50 mV.
  • membrane depolarization e.g., a change of potential from–70 mV to–50 mV.
  • This effect is mediated by postsynaptic nicotinic receptors which are stimulated by acetylcholine to increase membrane permeability to Na + ions.
  • the reduced membrane potential stimulates neuronal excitability in the form of a postsynaptic action potential.
  • GABA gamma-aminobutyric acid
  • GRC receptor complex
  • GRC is responsible for the mediation of anxiety, seizure activity, and sedation.
  • GABA and drugs that act like GABA or facilitate the effects of GABA e.g., the therapeutically useful barbiturates and benzodiazepines (BZs), such as
  • Valium ® produce their therapeutically useful effects by interacting with specific regulatory sites on the GRC. Accumulated evidence has now indicated that in addition to the
  • the GRC contains a distinct site for neuroactive steroids. See, e.g., Lan, N. C. et al., Neurochem. Res. (1991) 16:347–356.
  • Neuroactive steroids do occur endogenously.
  • the most potent endogenous neuroactive steroids are 3 ⁇ hydroxy-5-reduced pregnan-20-one and 3 ⁇ -21-dihydroxy-5-reduced pregnan- 20-one, metabolites of hormonal steroids progesterone and deoxycorticosterone, respectively.
  • the ability of these steroid metabolites to alter brain excitability was recognized in 1986 (Majewska, M. D. et al., Science 232:1004-1007 (1986); Harrison, N. L. et al., J Pharmacol. Exp. Ther.241:346-353 (1987)).
  • PMS premenstrual syndrome
  • deoxycorticosterone has been found to be effective in treating subjects with epileptic spells correlated with their menstrual cycles (Aird, R.B. and Gordan, G., J. Amer. Med. Soc.145:715- 719 (1951)).
  • PND postnatal depression
  • progesterone levels decrease dramatically leading to the onset of PND.
  • the symptoms of PND range from mild depression to psychosis requiring hospitalization.
  • PND is also associated with severe anxiety and irritability.
  • PND-associated depression is not amenable to treatment by classic antidepressants, and women experiencing PND show an increased incidence of PMS (Dalton, K., Premenstrual Syndrome and Progesterone Therapy, 2 nd edition, Chicago Yearbook, Chicago (1984)).
  • deoxycorticosterone and more specifically their metabolites in the homeostatic regulation of brain excitability which is manifested as an increase in seizure activity or symptoms associated with catamenial epilepsy, PMS, and PND.
  • PMS catamenial epilepsy
  • PND catamenial epilepsy
  • progesterone is not consistently effective in the treatment of the aforementioned syndromes. For example, no dose-response relationship exists for progesterone in the treatment of PMS (Maddocks et al., Obstet. Gynecol.154:573-581 (1986); Dennerstein et al., Brit. Med J 290:16-17 (1986)).
  • New and improved neuroactive steroids are needed that act as modulating agents for brain excitability, as well as agents for the prevention and treatment of CNS-related diseases.
  • the compounds, compositions, and methods described herein are directed toward this end. Summary of the Invention [11] Provided herein are C21-substituted neuroactive steroids designed, for example, to act as GABA modulators.
  • such compounds are envisioned to be useful as therapeutic agents for the inducement of anesthesia and/or sedation in a subject.
  • such compounds are envisioned to be useful as therapeutic agents for treating a CNS-related disorder (e.g., sleep disorder, a mood disorder such as depression, a schizophrenia spectrum disorder, a convulsive disorder, a disorder of memory and/or cognition, a movement disorder, a personality disorder, autism spectrum disorder, pain, traumatic brain injury, a vascular disease, a substance abuse disorder and/or withdrawal syndrome, or tinnitus) in a subject in need (e.g., a subject with Rett syndrome, Fragile X syndrome, or Angelman syndrome).
  • a CNS-related disorder e.g., sleep disorder, a mood disorder such as depression, a schizophrenia spectrum disorder, a convulsive disorder, a disorder of memory and/or cognition, a movement disorder, a personality disorder, autism spectrum disorder, pain, traumatic brain injury, a vascular disease, a substance abuse
  • ring A is substituted or unsubstituted carbocyclyl, heterocyclyl, aryl, or heteroaryl
  • R 1 is hydrogen, substituted or unsubstituted C 1-6 alkyl, substituted or unsubstituted C 2-6 alkenyl, or substituted or unsubstituted C 3-6 carbocylyl
  • R 2 is hydrogen, substituted or unsubstituted C 1-6 alkyl, substituted or unsubstituted C 2-6 alkenyl, substituted or unsubstituted C 2-6 alkynyl, substituted or unsubstituted C 3-6 carbocylyl, or–OR A2 , wherein R A2 is hydrogen or substituted or unsubstituted C 1-6 alkyl, substituted or unsubstituted C 2-6 alkenyl, substituted or unsubstituted C 2-6 alkynyl, or substituted or unsubstituted C 3-6
  • R 5 is absent.
  • A is Ring A is substituted or unsubstituted nitrogen containing heterocyclyl, or nitrogen containing heteroaryl. In an embodiment, A is attached through a nitrogen atom. In an embodiment, A is monocyclic heteroaryl or heterocylcyl, for example, a substituted monocyclic heteroaryl. In an embodiment, A is bicyclic heteroaryl, for example, a substituted bicyclic heteroaryl. Exemplary substituents are described herein.
  • ring A is substituted carbocyclyl, heterocyclyl, aryl, or heteroaryl, for example, a substituted heterocyclyl or heteroaryl.
  • the heterocyclyl or heteroaryl is attached through a nitrogen atom.
  • A is a substituted
  • A is an unsubstituted heterocyclyl linked through a nitrogen atom.
  • A is a substituted heteroaryl linked through a nitrogen atom.
  • A is an unsubstituted heteroaryl linked through a nitrogen atom.
  • A is substituted or unsubstituted imidiaole or benzimidazole (e.g., a substituted imidazole or benzimidazole).
  • the imidazole or benzimidazole is attached through a nitrogen atom.
  • A is substituted or unsubstituted and is selected from:
  • A is substituted or unsubstituted and is selected from:
  • A is substituted or unsubstituted and is selected from:
  • R 1 is hydrogen, methyl, ethyl, or propyl (e.g., methyl).
  • R 1 is unsubstituted C 1-3 alkyl.
  • R 1 is substituted C 1-6 alkyl (e.g., haloalkyl or alkoxyalkyl such as methoxymethyl).
  • At least one of R 2 , R 3a , R 4a or R 4b is not hydrogen.
  • at least 2 of R 2 , R 3a , R 4a or R 4b is not hydrogen.
  • R 2 is substituted or unsubstituted C 1-6 alkyl, substituted or
  • R A2 is hydrogen or substituted or unsubstituted C 1-6 alkyl, substituted or unsubstituted C 2-6 alkenyl, substituted or unsubstituted C 2-6 alkynyl, or substituted or unsubstituted C 3-6 carbocylyl.
  • R 2 is–OR A2 , wherein R A2 is hydrogen or substituted or unsubstituted C 1-6 alkyl, substituted or unsubstituted C 2-6 alkenyl, substituted or unsubstituted C 2-6 alkynyl, or substituted or unsubstituted C 3-6 carbocylyl, for example, hydroxyl or alkoxy.
  • R 3a is–OR A3 , wherein R A3 is hydrogen, substituted or unsubstituted C 1-6 alkyl, substituted or unsubstituted C 2-6 alkenyl, substituted or unsubstituted C 2-6 alkynyl, or substituted or unsubstituted C 3-6 carbocylyl, for example, hydroxyl or alkoxy
  • the compound is of the Formula (I-a):
  • the compound is of the Formula (I-b):
  • the compound is of the Formula (I-c1) or (I-c2):
  • Ring A is substituted or unsubstituted carbocyclyl, heterocyclyl, aryl, or heteroaryl
  • R 1 is hydrogen, substituted or unsubstituted C 1-6 alkyl, substituted or unsubstituted C 2-6 alkenyl, or substituted or unsubstituted C 3-6 carbocylyl
  • R 2 is hydrogen, substituted or unsubstituted C 1-6 alkyl, substituted or unsubstituted C 2-6 alkenyl, substituted or unsubstituted C 2-6 alkynyl, substituted or unsubstituted C 3-6 carbocylyl, or–OR A2 , wherein R A2 is hydrogen or substituted or unsubstituted C 1-6 alkyl, substituted or unsubstituted C 2-6 alkenyl, substituted or unsubstituted C 2-6 alkynyl, or substituted or unsubstituted C 3-6 carbocylyl, or–OR A
  • A is a carbon bound (e.g., A linked through a carbon atom) substituted or unsubstituted 5 or 6-membered heteroaryl, or 6-membered aryl.
  • A is Ring A is substituted or unsubstituted nitrogen containing heterocyclyl, or nitrogen containing heteroaryl. In an embodiment, A is attached through a nitrogen. In an embodiment, A is monocyclic heteroaryl or heterocylcyl, for example, a substituted monocyclic heteroaryl. In an embodiment, A is bicyclic heteroaryl, for example, a substituted bicyclic heteroaryl. Exemplary substituents are described herein.
  • R 1 is hydrogen. In an embodiment, R 1 is substituted or unsubstituted C 1-6 alkyl, for example, methyl.
  • At least one of R 2 , R 3a , R 4a or R 4b is not hydrogen.
  • at least 2 of R 2 , R 3a , R 4a or R 4b is not hydrogen.
  • R 2 is substituted or unsubstituted C 1-6 alkyl, substituted or
  • R A2 is hydrogen or substituted or unsubstituted C 1-6 alkyl, substituted or unsubstituted C 2-6 alkenyl, substituted or unsubstituted C 2-6 alkynyl, or substituted or unsubstituted C 3-6 carbocylyl.
  • R 2 is–OR A2 , wherein R A2 is hydrogen or substituted or unsubstituted C 1-6 alkyl, substituted or unsubstituted C 2-6 alkenyl, substituted or unsubstituted C 2-6 alkynyl, or substituted or unsubstituted C 3-6 carbocylyl, for example, hydroxyl or alkoxy.
  • R 3a is–OR A3 , wherein R A3 is hydrogen, substituted or unsubstituted C 1-6 alkyl, substituted or unsubstituted C 2-6 alkenyl, substituted or unsubstituted C 2-6 alkynyl, or substituted or unsubstituted C 3-6 carbocylyl, for example, hydroxyl or alkoxy
  • Ring E is substituted or unsubstituted heterocyclyl or heteroaryl.
  • the com ound is of the Formula II-a1 or II-a2 :
  • E is a ring comprising at least one nitrogen atom.
  • A is a ring comprising at least one nitrogen atom.
  • E is selected from:
  • E is selected from:
  • A is:
  • E is a ring comprising at least two nitrogen atoms. In an embodiment, E is a ring comprising at least two nitrogen atoms and R 1 is substituted or unsubstituted C 2-6 alkyl. In an embodiment, E is a ring comprising at least two nitrogen atoms and at least one of R 2 , R 3a , R 4a or R 4b is not hydrogen.
  • E is a ring comprising at least three nitrogen atoms.
  • E is a ring comprising four nitrogen atoms.
  • R 1 is substituted or unsubstituted C 2-6 alkyl.
  • At least one of R 2 , R 3a , R 4a or R 4b is not hydrogen.
  • E is a ring comprising 2, 3 or 4 nitrogen atoms.
  • E is a ring selected from pyrazole, triazole, tetrazole, indazole, benzotriazole, triazolopyridine, triazolopyrazine, pyrazolopyrazine.
  • A is a 6-membered heterocyclyl ring (e.g., a 6-membered heterocyclyl ring comprising at least two heteroatoms).
  • A is a 5-6-membered heterocyclyl ring, and n is 1 or 2.
  • E is morpholine and n is 1 or 2.
  • R 1 is hydrogen or unsubstituted C 1-6 alkyl. In an embodiment, R 1 is or methyl. In an embodiment, R 1 is substituted or unsubstituted C 2-6 alkyl.
  • R 2 is hydrogen,–OR A2 , wherein R A2 is hydrogen, or substituted or unsubstituted C 1-6 alkyl (e.g., methyl, ethyl).
  • R 3a is–OR A3 , wherein R A3 is hydrogen, or substituted or unsubstituted C 1-6 alkyl (e.g., methyl).
  • R 4a is hydrogen, or substituted or unsubstituted C 1-6 alkyl (e.g., methyl).
  • R 4b is hydrogen, or substituted or unsubstituted C 1-6 alkyl (e.g., methyl).
  • R 4a is hydrogen
  • R 4b is substituted or unsubstituted C 1-6 alkyl (e.g., methyl).
  • R 5 is hydrogen
  • n 0.
  • halogen e.g., -F, -Br, -Cl
  • cyano cyano
  • R A6 is hydrogen or substituted or unsubstituted C 1-6 alkyl (e.g., methyl,
  • n is 1 and R 6 is halogen (e.g., -F, -Br, -Cl) or cyano.
  • R 6 is halogen (e.g., -F, -Br, -Cl) or cyano.
  • n is 1 and R 6 is substituted or unsubstituted C 1-6 alkyl (e.g., methyl).
  • R A6 is hydrogen or substituted or unsubstituted C 1-6 alkyl (e.g., methyl, ethyl), C 1-6 haloalkyl (e.g., -CF 3 ), and R B6 is substituted or unsubstituted C 1-6 alkyl.
  • n is 2 and R 6 is independently selected from halogen (e.g., -F, -Br, - Cl). In an embodiment, n is 2 and one of R 6 is fluorine.
  • n is 0 and R 1 is substituted or unsubstituted C 2-6 alkyl.
  • R 1 is substituted or unsubstituted C 1-6 alkyl and at least one of R 2 , R 3a , R 4a or R 4b is not hydrogen.
  • the compound is of the Formula (II-a1) and E is a heteroaryl ring comprising at least 3 nitrogen atoms.
  • the compound is:
  • a pharmaceutical composition comprising a compound of the Formula (I) and a pharmaceutically acceptable excipient.
  • a method of inducing sedation and/or anesthesia in a subject comprising administering to the subject an effective amount of a compound of the Formula (I), or a pharmaceutically acceptable salt thereof.
  • the subject experiences sedation and/or anesthesia within one hour of administration.
  • the subject experiences sedation and/or anesthesia instantaneously.
  • the compound is administered by intravenous administration.
  • the compound is administered chronically.
  • the subject is a mammal. In an embodiment, the subject is a human. In an embodiment, the compound is administered in combination with another therapeutic agent. In one aspect, provided is a method for treating seizure in a subject, comprising administering to the subject an effective amount of a compound of the Formula (I) or a pharmaceutically acceptable salt thereof.
  • the status epilepticus is convulsive status epilepticus (e.g., early status epilepticus, established status epilepticus, refractory status epilepticus, super-refractory status epilepticus) or non- convulsive status epilepticus, (e.g., generalized status epilepticus, complex partial status epilepticus).
  • convulsive status epilepticus e.g., early status epilepticus, established status epilepticus, refractory status epilepticus, super-refractory status epilepticus
  • non- convulsive status epilepticus e.g., generalized status epilepticus, complex partial status epilepticus.
  • a method for treating disorders related to GABA function in a subject in need thereof comprising administering to the subject a therapeutically effective amount of a compound, a pharmaceutically acceptable salt thereof, or pharmaceutical composition of one of a compound of the Formula (I).
  • a method for treating a CNS-related disorder in a subject in need thereof comprising administering to the subject an effective amount of a compound of the Formula (I) or a pharmaceutically acceptable salt thereof.
  • the CNS-related disorder is a sleep disorder, a mood disorder such as depression, a schizophrenia spectrum disorder, a convulsive disorder, a disorder of memory and/or cognition, a movement disorder, a personality disorder, autism spectrum disorder, pain, traumatic brain injury, a vascular disease, a substance abuse disorder and/or withdrawal syndrome, or tinnitus.
  • the subject is a subject with Rett syndrome, Fragile X syndrome, or Angelman syndrome.
  • the CNS–related disorder is a sleep disorder, an eating disorder, a mood disorder such as depression, a schizophrenia spectrum disorder, a convulsive disorder, a disorder of memory and/or cognition, a movement disorder, a personality disorder, autism spectrum disorder, pain, traumatic brain injury, a vascular disease, a substance abuse disorder and/or withdrawal syndrome, or tinnitus.
  • the CNS-related disorder is depression (e.g., post-partum depression).
  • the CNS-related disorder is tremor (e.g., essential tremor).
  • the CNS-related disorder is an eating disorder (e.g., anorexia nervosa, bulimia nervosa, binge-eating disorder, cachexia).
  • the compound is administered orally. In an embodiment, the compound is administered intramuscularly.
  • kits comprising a solid composition comprising a compound of Formula (I) and a sterile diluent.
  • the present invention also provides pharmaceutical compositions comprising a compound of the present invention and methods of use and treatment, e.g., such as for inducing sedation and/or anesthesia, for treating a CNS-related disorder.
  • a pharmaceutical composition comprising a compound of the present invention and a pharmaceutically acceptable excipient.
  • the compound of the present invention is provided in an effective amount in the pharmaceutical composition.
  • the compound of the present invention is provided in a therapeutically effective amount.
  • the compound of the present invention is provided in a prophylactically effective amount.
  • GABA modulators act, in certain embodiments, as GABA modulators, e.g., effecting the GABA A receptor in either a positive or negative manner.
  • modulators of the excitability of the central nervous system (CNS) as mediated by their ability to modulate GABA A receptor, such compounds are expected to have CNS-activity.
  • the CNS–related disorder is selected from the group consisting of a sleep disorder, a mood disordersuch as depression, a schizophrenia spectrum disorder, a convulsive disorder, a disorder of memory and/or cognition, a movement disorder, a personality disorder, autism spectrum disorder, pain, traumatic brain injury, a vascular disease, a substance abuse disorder and/or withdrawal syndrome, and tinnitus.
  • the compound is administered orally, subcutaneously, intravenously, or intramuscularly.
  • the compound is administered chronically.
  • the compound is administered continuously, e.g., by continuous intravenous infusion.
  • Compounds described herein can comprise one or more asymmetric centers, and thus can exist in various isomeric forms, e.g., enantiomers and/or diastereomers.
  • the compounds described herein can be in the form of an individual enantiomer, diastereomer or geometric isomer, or can be in the form of a mixture of stereoisomers, including racemic mixtures and mixtures enriched in one or more stereoisomer.
  • Isomers can be isolated from mixtures by methods known to those skilled in the art, including chiral high pressure liquid chromatography (HPLC) ), supercritical fluid chromatography (SFC), and the formation and crystallization of chiral salts; or preferred isomers can be prepared by asymmetric syntheses. See, for example, Jacques et al., Enantiomers, Racemates and Resolutions (Wiley Interscience, New York, 1981); Wilen et al., Tetrahedron 33:2725 (1977); Eliel, Stereochemistry of Carbon Compounds (McGraw–Hill, NY, 1962); and Wilen, Tables of Resolving Agents and Optical Resolutions p.268 (E.L. Eliel, Ed., Univ. of Notre Dame Press, Notre Dame, IN 1972). The invention additionally encompasses compounds described herein as individual isomers substantially free of other isomers, and alternatively, as mixtures of various isomers.
  • a pure enantiomeric compound is substantially free from other enantiomers or stereoisomers of the compound (i.e., in enantiomeric excess).
  • an “S” form of the compound is substantially free from the“R” form of the compound and is, thus, in enantiomeric excess of the“R” form.
  • enantiomer denotes that the compound comprises more than 75% by weight, more than 80% by weight, more than 85% by weight, more than 90% by weight, more than 91% by weight, more than 92% by weight, more than 93% by weight, more than 94% by weight, more than 95% by weight, more than 96% by weight, more than 97% by weight, more than 98% by weight, more than 98.5% by weight, more than 99% by weight, more than 99.2% by weight, more than 99.5% by weight, more than 99.6% by weight, more than 99.7% by weight, more than 99.8% by weight or more than 99.9% by weight, of the enantiomer.
  • the weights are based upon total weight of all enantiomers or stereoisomers of the compound.
  • an enantiomerically pure compound can be present with other active or inactive ingredients.
  • a pharmaceutical composition comprising enantiomerically pure R–compound can comprise, for example, about 90% excipient and about 10% enantiomerically pure R–compound.
  • the enantiomerically pure R–compound in such compositions can, for example, comprise, at least about 95% by weight R–compound and at most about 5% by weight S–compound, by total weight of the compound.
  • a pharmaceutical composition comprising
  • enantiomerically pure S–compound can comprise, for example, about 90% excipient and about 10% enantiomerically pure S–compound.
  • the enantiomerically pure S– compound in such compositions can, for example, comprise, at least about 95% by weight S– compound and at most about 5% by weight R–compound, by total weight of the compound.
  • the active ingredient can be formulated with little or no excipient or carrier.
  • Compound described herein may also comprise one or more isotopic substitutions.
  • H may be in any isotopic form, including 1 H, 2 H (D or deuterium), and 3 H (T or tritium);
  • C may be in any isotopic form, including 12 C, 13 C, and 14 C;
  • O may be in any isotopic form, including 16 O and 18 O; and the like.
  • the articles“a” and“an” may be used herein to refer to one or to more than one (i.e. at least one) of the grammatical objects of the article.
  • an analogue means one analogue or more than one analogue.
  • C 1–6 alkyl is intended to encompass, C 1 , C 2 , C 3 , C 4 , C 5 , C 6 , C 1– 6 , C 1–5 , C 1–4 , C 1–3 , C 1–2 , C 2–6 , C 2–5 , C 2–4 , C 2–3 , C 3–6 , C 3–5 , C 3–4 , C 4–6 , C 4–5 , and C 5–6 alkyl.
  • Alkyl refers to a radical of a straight–chain or branched saturated hydrocarbon group having from 1 to 20 carbon atoms (“C 1–20 alkyl”). In some embodiments, an alkyl group has 1 to 12 carbon atoms (“C 1–12 alkyl”). In some embodiments, an alkyl group has 1 to 8 carbon atoms (“C 1–8 alkyl”). In some embodiments, an alkyl group has 1 to 6 carbon atoms (“C 1–6 alkyl”, also referred to herein as“lower alkyl”). In some embodiments, an alkyl group has 1 to 5 carbon atoms (“C 1–5 alkyl”).
  • an alkyl group has 1 to 4 carbon atoms (“C 1–4 alkyl”). In some embodiments, an alkyl group has 1 to 3 carbon atoms (“C 1–3 alkyl”). In some embodiments, an alkyl group has 1 to 2 carbon atoms (“C 1–2 alkyl”). In some
  • an alkyl group has 1 carbon atom (“C 1 alkyl”). In some embodiments, an alkyl group has 2 to 6 carbon atoms (“C 2–6 alkyl”). Examples of C 1–6 alkyl groups include methyl (C 1 ), ethyl (C 2 ), n–propyl (C 3 ), isopropyl (C 3 ), n–butyl (C 4 ), tert–butyl (C 4 ), sec–butyl (C 4 ), iso– butyl (C 4 ), n–pentyl (C 5 ), 3–pentanyl (C 5 ), amyl (C 5 ), neopentyl (C 5 ), 3–methyl–2–butanyl (C 5 ), tertiary amyl (C 5 ), and n–hexyl (C 6 ).
  • alkyl groups include n–heptyl (C 7 ), n–octyl (C 8 ) and the like. Unless otherwise specified, each instance of an alkyl group is independently optionally substituted, i.e., unsubstituted (an“unsubstituted alkyl”) or substituted (a“substituted alkyl”) with one or more substituents; e.g., for instance from 1 to 5 substituents, 1 to 3 substituents, or 1 substituent. In certain embodiments, the alkyl group is unsubstituted C 1–10 alkyl (e.g.,–CH 3 ). In certain embodiments, the alkyl group is substituted C 1–10 alkyl.
  • alkyl abbreviations include Me (–CH 3 ), Et (–CH 2 CH 3 ), iPr (–CH(CH 3 ) 2 ), nPr (– CH 2 CH 2 CH 3 ), n–Bu (—CH 2 CH 2 CH 2 CH 3 ), or i–Bu (–CH 2 CH(CH 3 ) 2 ).
  • Alkenyl refers to a radical of a straight–chain or branched hydrocarbon group having from 2 to 20 carbon atoms, one or more carbon–carbon double bonds, and no triple bonds (“C 2– 20 alkenyl”). In some embodiments, an alkenyl group has 2 to 10 carbon atoms (“C 2–10 alkenyl”).
  • an alkenyl group has 2 to 8 carbon atoms (“C 2–8 alkenyl”). In some embodiments, an alkenyl group has 2 to 6 carbon atoms (“C 2–6 alkenyl”). In some embodiments, an alkenyl group has 2 to 5 carbon atoms (“C 2–5 alkenyl”). In some
  • an alkenyl group has 2 to 4 carbon atoms (“C 2–4 alkenyl”). In some
  • an alkenyl group has 2 to 3 carbon atoms (“C 2–3 alkenyl”). In some
  • an alkenyl group has 2 carbon atoms (“C 2 alkenyl”).
  • the one or more carbon– carbon double bonds can be internal (such as in 2–butenyl) or terminal (such as in 1–butenyl).
  • Examples of C 2–4 alkenyl groups include ethenyl (C 2 ), 1–propenyl (C 3 ), 2–propenyl (C 3 ), 1– butenyl (C 4 ), 2–butenyl (C 4 ), butadienyl (C 4 ), and the like.
  • C 2–6 alkenyl groups include the aforementioned C 2–4 alkenyl groups as well as pentenyl (C 5 ), pentadienyl (C 5 ), hexenyl (C 6 ), and the like. Additional examples of alkenyl include heptenyl (C 7 ), octenyl (C 8 ), octatrienyl (C 8 ), and the like.
  • each instance of an alkenyl group is independently optionally substituted, i.e., unsubstituted (an“unsubstituted alkenyl”) or substituted (a“substituted alkenyl”) with one or more substituents e.g., for instance from 1 to 5 substituents, 1 to 3 substituents, or 1 substituent.
  • the alkenyl group is unsubstituted C 2–10 alkenyl.
  • the alkenyl group is substituted C 2–10 alkenyl.
  • Alkynyl refers to a radical of a straight–chain or branched hydrocarbon group having from 2 to 20 carbon atoms, one or more carbon–carbon triple bonds, and optionally one or more double bonds (“C 2–20 alkynyl”).
  • an alkynyl group has 2 to 10 carbon atoms (“C 2–10 alkynyl”).
  • an alkynyl group has 2 to 8 carbon atoms (“C 2–8 alkynyl”).
  • an alkynyl group has 2 to 6 carbon atoms (“C 2–6 alkynyl”).
  • an alkynyl group has 2 to 5 carbon atoms (“C 2–5 alkynyl”).
  • an alkynyl group has 2 to 4 carbon atoms (“C 2–4 alkynyl”).
  • C 2–4 alkynyl refers to a radical of a straight–chain or branched hydrocarbon group having from 2 to 20 carbon atoms, one or more carbon–carbon triple bonds, and optionally
  • an alkynyl group has 2 to 3 carbon atoms (“C 2–3 alkynyl”). In some
  • an alkynyl group has 2 carbon atoms (“C 2 alkynyl”).
  • the one or more carbon– carbon triple bonds can be internal (such as in 2–butynyl) or terminal (such as in 1–butynyl).
  • Examples of C 2–4 alkynyl groups include, without limitation, ethynyl (C 2 ), 1–propynyl (C 3 ), 2– propynyl (C 3 ), 1–butynyl (C 4 ), 2–butynyl (C 4 ), and the like.
  • C 2–6 alkenyl groups include the aforementioned C 2–4 alkynyl groups as well as pentynyl (C 5 ), hexynyl (C 6 ), and the like. Additional examples of alkynyl include heptynyl (C 7 ), octynyl (C 8 ), and the like.
  • each instance of an alkynyl group is independently optionally substituted, i.e., unsubstituted (an“unsubstituted alkynyl”) or substituted (a“substituted alkynyl”) with one or more substituents; e.g., for instance from 1 to 5 substituents, 1 to 3 substituents, or 1 substituent.
  • the alkynyl group is unsubstituted C 2–10 alkynyl.
  • the alkynyl group is substituted C 2–10 alkynyl.
  • Aryl refers to a radical of a monocyclic or polycyclic (e.g., bicyclic or tricyclic) 4n+2 aromatic ring system (e.g., having 6, 10, or 14 pi electrons shared in a cyclic array) having 6–14 ring carbon atoms and zero heteroatoms provided in the aromatic ring system (“C 6–14 aryl”).
  • an aryl group has six ring carbon atoms (“C 6 aryl”; e.g., phenyl).
  • an aryl group has ten ring carbon atoms (“C 10 aryl”; e.g., naphthyl such as 1– naphthyl and 2–naphthyl).
  • an aryl group has fourteen ring carbon atoms (“C 14 aryl”; e.g., anthracyl).“Aryl” also includes ring systems wherein the aryl ring, as defined above, is fused with one or more carbocyclyl or heterocyclyl groups wherein the radical or point of attachment is on the aryl ring, and in such instances, the number of carbon atoms continue to designate the number of carbon atoms in the aryl ring system.
  • Aryl groups include, but are not limited to, phenyl, naphthyl, indenyl, and tetrahydronaphthyl. Unless otherwise specified, each instance of an aryl group is independently optionally substituted, i.e., unsubstituted (an “unsubstituted aryl”) or substituted (a“substituted aryl”) with one or more substituents. In certain embodiments, the aryl group is unsubstituted C 6–14 aryl. In certain embodiments, the aryl group is substituted C 6–14 aryl.
  • Examples of representative substituted aryls include the following wherein one of R 56 and R 57 may be hydrogen and at least one of R 56 and R 57 is each independently selected from C 1 –C 8 alkyl, C 1 –C 8 haloalkyl, 4–10 membered heterocyclyl, alkanoyl, C 1 –C 8 alkoxy, heteroaryloxy, alkylamino, arylamino, heteroarylamino, NR 58 COR 59 , NR 58 SOR 59 NR 58 SO 2 R 59 , COOalkyl, COOaryl, CONR 58 R 59 , CONR 58 OR 59 , NR 58 R 59 ,
  • SO 2 NR 58 R 59 S–alkyl, Soalkyl, SO 2 alkyl, Saryl, Soaryl, SO 2 aryl; or R 56 and R 57 may be joined to form a cyclic ring (saturated or unsaturated) from 5 to 8 atoms, optionally containing one or more heteroatoms selected from the group N, O, or S.
  • R 60 and R 61 are independently hydrogen, C 1 –C 8 alkyl, C 1 –C 4 haloalkyl, C 3 –C 10 cycloalkyl, 4–10 membered heterocyclyl, C 6 –C 10 aryl, substituted C 6 –C 10 aryl, 5–10 membered heteroaryl, or substituted 5–10 membered heteroaryl .
  • aryl groups having a fused heterocyclyl group include the following: wherein each W is selected from C(R 66 ) 2 , NR 66 , O, and S; and each Y is selected from carbonyl, NR 66 , O and S; and R 66 is independently hydrogen, C 1 –C 8 alkyl, C 3 –C 10 cycloalkyl, 4–10 membered heterocyclyl, C 6 –C 10 aryl, and 5–10 membered heteroaryl.
  • Halo or“halogen,” independently or as part of another substituent, mean, unless otherwise stated, a fluorine (F), chlorine (Cl), bromine (Br), or iodine (I) atom.
  • halide by itself or as part of another substituent, refers to a fluoride, chloride, bromide, or iodide atom. In certain embodiments, the halo group is either fluorine or chlorine.
  • Haloalkyl and“haloalkoxy” can include alkyl and alkoxy structures that are substituted with one or more halo groups or with combinations thereof.
  • fluoroalkyl and“fluoroalkoxy” include haloalkyl and haloalkoxy groups, respectively, in which the halo is fluorine.
  • Heteroaryl refers to a radical of a 5–10 membered monocyclic or bicyclic 4n+2 aromatic ring system (e.g., having 6 or 10 pi electrons shared in a cyclic array) having ring carbon atoms and 1–4 ring heteroatoms provided in the aromatic ring system, wherein each heteroatom is independently selected from nitrogen, oxygen and sulfur (“5–10 membered heteroaryl”).
  • the point of attachment can be a carbon or nitrogen atom, as valency permits.
  • Heteroaryl bicyclic ring systems can include one or more heteroatoms in one or both rings.
  • “Heteroaryl” includes ring systems wherein the heteroaryl ring, as defined above, is fused with one or more carbocyclyl or heterocyclyl groups wherein the point of attachment is on the heteroaryl ring, and in such instances, the number of ring members continue to designate the number of ring members in the heteroaryl ring system.
  • “Heteroaryl” also includes ring systems wherein the heteroaryl ring, as defined above, is fused with one or more aryl groups wherein the point of attachment is either on the aryl or heteroaryl ring, and in such instances, the number of ring members designates the number of ring members in the fused (aryl/heteroaryl) ring system.
  • Bicyclic heteroaryl groups wherein one ring does not contain a heteroatom e.g., indolyl, quinolinyl, carbazolyl, and the like
  • the point of attachment can be on either ring, i.e., either the ring bearing a heteroatom (e.g., 2–indolyl) or the ring that does not contain a heteroatom (e.g., 5–indolyl).
  • a heteroaryl group is a 5–10 membered aromatic ring system having ring carbon atoms and 1–4 ring heteroatoms provided in the aromatic ring system, wherein each heteroatom is independently selected from nitrogen, oxygen, and sulfur (“5–10 membered heteroaryl”).
  • a heteroaryl group is a 5–8 membered aromatic ring system having ring carbon atoms and 1–4 ring heteroatoms provided in the aromatic ring system, wherein each heteroatom is independently selected from nitrogen, oxygen, and sulfur (“5–8 membered heteroaryl”).
  • a heteroaryl group is a 5–6 membered aromatic ring system having ring carbon atoms and 1–4 ring heteroatoms provided in the aromatic ring system, wherein each heteroatom is independently selected from nitrogen, oxygen, and sulfur (“5–6 membered heteroaryl”).
  • the 5–6 membered heteroaryl has 1–3 ring heteroatoms selected from nitrogen, oxygen, and sulfur.
  • the 5–6 membered heteroaryl has 1–2 ring heteroatoms selected from nitrogen, oxygen, and sulfur.
  • the 5–6 membered heteroaryl has 1 ring heteroatom selected from nitrogen, oxygen, and sulfur.
  • each instance of a heteroaryl group is independently optionally substituted, i.e., unsubstituted (an“unsubstituted heteroaryl”) or substituted (a“substituted heteroaryl”) with one or more substituents.
  • the heteroaryl group is unsubstituted 5–14 membered heteroaryl.
  • the heteroaryl group is substituted 5–14 membered heteroaryl.
  • Exemplary 5–membered heteroaryl groups containing one heteroatom include, without limitation, pyrrolyl, furanyl and thiophenyl.
  • Exemplary 5–membered heteroaryl groups containing two heteroatoms include, without limitation, imidazolyl, pyrazolyl, oxazolyl, isoxazolyl, thiazolyl, and isothiazolyl.
  • Exemplary 5–membered heteroaryl groups containing three heteroatoms include, without limitation, triazolyl, oxadiazolyl, and thiadiazolyl.
  • Exemplary 5–membered heteroaryl groups containing four heteroatoms include, without limitation, tetrazolyl.
  • Exemplary 6–membered heteroaryl groups containing one heteroatom include, without limitation, pyridinyl.
  • Exemplary 6–membered heteroaryl groups containing two heteroatoms include, without limitation, pyridazinyl, pyrimidinyl, and pyrazinyl.
  • Exemplary 6–membered heteroaryl groups containing three or four heteroatoms include, without limitation, triazinyl and tetrazinyl, respectively.
  • Exemplary 7–membered heteroaryl groups containing one heteroatom include, without limitation, azepinyl, oxepinyl, and thiepinyl.
  • Exemplary 5,6–bicyclic heteroaryl groups include, without limitation, indolyl, isoindolyl, indazolyl, benzotriazolyl, benzothiophenyl, isobenzothiophenyl, benzofuranyl, benzoisofuranyl, benzimidazolyl, benzoxazolyl, benzisoxazolyl, benzoxadiazolyl, benzthiazolyl,
  • benzisothiazolyl benzthiadiazolyl, indolizinyl, and purinyl.
  • Exemplary 6,6–bicyclic heteroaryl groups include, without limitation, naphthyridinyl, pteridinyl, quinolinyl, isoquinolinyl, cinnolinyl, quinoxalinyl, phthalazinyl, and quinazolinyl.
  • each Y is selected from carbonyl, N, NR 65 , O, and S; and R 65 is independently hydrogen, C 1 –C 8 alkyl, C 3 –C 10 cycloalkyl, 4–10 membered heterocyclyl, C 6 –C 10 aryl, and 5–10 membered heteroaryl.
  • Carbocyclyl or“carbocyclic” refers to a radical of a non–aromatic cyclic hydrocarbon group having from 3 to 10 ring carbon atoms (“C 3–10 carbocyclyl”) and zero heteroatoms in the non–aromatic ring system.
  • a carbocyclyl group has 3 to 8 ring carbon atoms (“C 3–8 carbocyclyl”). In some embodiments, a carbocyclyl group has 3 to 6 ring carbon atoms (“C 3–6 carbocyclyl”). In some embodiments, a carbocyclyl group has 3 to 6 ring carbon atoms (“C 3–6 carbocyclyl”). In some embodiments, a carbocyclyl group has 5 to 10 ring carbon atoms (“C 5–10 carbocyclyl”).
  • Exemplary C 3–6 carbocyclyl groups include, without limitation, cyclopropyl (C 3 ), cyclopropenyl (C 3 ), cyclobutyl (C 4 ), cyclobutenyl (C 4 ), cyclopentyl (C 5 ), cyclopentenyl (C 5 ), cyclohexyl (C 6 ), cyclohexenyl (C 6 ), cyclohexadienyl (C 6 ), and the like.
  • Exemplary C 3–8 carbocyclyl groups include, without limitation, the aforementioned C 3–6 carbocyclyl groups as well as cycloheptyl (C 7 ), cycloheptenyl (C 7 ), cycloheptadienyl (C 7 ), cycloheptatrienyl (C 7 ), cyclooctyl (C 8 ), cyclooctenyl (C 8 ), bicyclo[2.2.1]heptanyl (C 7 ), bicyclo[2.2.2]octanyl (C 8 ), and the like.
  • Exemplary C 3–10 carbocyclyl groups include, without limitation, the aforementioned C 3–8 carbocyclyl groups as well as cyclononyl (C 9 ),
  • the carbocyclyl group is either monocyclic (“monocyclic carbocyclyl”) or contain a fused, bridged or spiro ring system such as a bicyclic system
  • the carbocyclyl group is unsubstituted C 3–10 carbocyclyl. In certain embodiments, the carbocyclyl group is a substituted C 3–10 carbocyclyl.
  • “carbocyclyl” is a monocyclic, saturated carbocyclyl group having from 3 to 10 ring carbon atoms (“C 3–10 cycloalkyl”). In some embodiments, a cycloalkyl group has 3 to 8 ring carbon atoms (“C 3–8 cycloalkyl”). In some embodiments, a cycloalkyl group has 3 to 6 ring carbon atoms (“C 3–6 cycloalkyl”).
  • a cycloalkyl group has 5 to 6 ring carbon atoms (“C 5–6 cycloalkyl”). In some embodiments, a cycloalkyl group has 5 to 10 ring carbon atoms (“C 5–10 cycloalkyl”). Examples of C 5–6 cycloalkyl groups include cyclopentyl (C 5 ) and cyclohexyl (C 5 ). Examples of C 3–6 cycloalkyl groups include the aforementioned C 5–6 cycloalkyl groups as well as cyclopropyl (C 3 ) and cyclobutyl (C 4 ).
  • C 3–8 cycloalkyl groups include the aforementioned C 3–6 cycloalkyl groups as well as cycloheptyl (C 7 ) and cyclooctyl (C 8 ).
  • each instance of a cycloalkyl group is independently unsubstituted (an“unsubstituted cycloalkyl”) or substituted (a “substituted cycloalkyl”) with one or more substituents.
  • the cycloalkyl group is unsubstituted C 3–10 cycloalkyl.
  • the cycloalkyl group is substituted C 3–10 cycloalkyl.
  • Heterocyclyl or“heterocyclic” refers to a radical of a 3– to 10–membered non– aromatic ring system having ring carbon atoms and 1 to 4 ring heteroatoms, wherein each heteroatom is independently selected from nitrogen, oxygen, sulfur, boron, phosphorus, and silicon (“3–10 membered heterocyclyl”).
  • the point of attachment can be a carbon or nitrogen atom, as valency permits.
  • a heterocyclyl group can either be monocyclic (“monocyclic heterocyclyl”) or a fused, bridged or spiro ring system such as a bicyclic system (“bicyclic heterocyclyl”), and can be saturated or can be partially unsaturated.
  • Heterocyclyl bicyclic ring systems can include one or more heteroatoms in one or both rings.“Heterocyclyl” also includes ring systems wherein the heterocyclyl ring, as defined above, is fused with one or more carbocyclyl groups wherein the point of attachment is either on the carbocyclyl or heterocyclyl ring, or ring systems wherein the heterocyclyl ring, as defined above, is fused with one or more aryl or heteroaryl groups, wherein the point of attachment is on the heterocyclyl ring, and in such instances, the number of ring members continue to designate the number of ring members in the heterocyclyl ring system. Unless otherwise specified, each instance of heterocyclyl is independently optionally
  • heterocyclyl group is unsubstituted 3–10 membered heterocyclyl. In certain embodiments, the heterocyclyl group is substituted 3–10 membered heterocyclyl.
  • a heterocyclyl group is a 5–10 membered non–aromatic ring system having ring carbon atoms and 1–4 ring heteroatoms, wherein each heteroatom is independently selected from nitrogen, oxygen, sulfur, boron, phosphorus, and silicon (“5–10 membered heterocyclyl”).
  • a heterocyclyl group is a 5–8 membered non– aromatic ring system having ring carbon atoms and 1–4 ring heteroatoms, wherein each heteroatom is independently selected from nitrogen, oxygen, and sulfur (“5–8 membered heterocyclyl”).
  • a heterocyclyl group is a 5–6 membered non–aromatic ring system having ring carbon atoms and 1–4 ring heteroatoms, wherein each heteroatom is independently selected from nitrogen, oxygen, and sulfur (“5–6 membered heterocyclyl”).
  • the 5–6 membered heterocyclyl has 1–3 ring heteroatoms selected from nitrogen, oxygen, and sulfur.
  • the 5–6 membered heterocyclyl has 1–2 ring heteroatoms selected from nitrogen, oxygen, and sulfur.
  • the 5–6 membered heterocyclyl has one ring heteroatom selected from nitrogen, oxygen, and sulfur.
  • Exemplary 3–membered heterocyclyl groups containing one heteroatom include, without limitation, azirdinyl, oxiranyl, thiorenyl.
  • Exemplary 4–membered heterocyclyl groups containing one heteroatom include, without limitation, azetidinyl, oxetanyl and thietanyl.
  • Exemplary 5–membered heterocyclyl groups containing one heteroatom include, without limitation, tetrahydrofuranyl, dihydrofuranyl, tetrahydrothiophenyl, dihydrothiophenyl, pyrrolidinyl, dihydropyrrolyl and pyrrolyl–2,5–dione.
  • Exemplary 5–membered heterocyclyl groups containing two heteroatoms include, without limitation, dioxolanyl, oxasulfuranyl, disulfuranyl, and oxazolidin–2–one.
  • Exemplary 5–membered heterocyclyl groups containing three heteroatoms include, without limitation, triazolinyl, oxadiazolinyl, and thiadiazolinyl.
  • Exemplary 6–membered heterocyclyl groups containing one heteroatom include, without limitation, piperidinyl, tetrahydropyranyl, dihydropyridinyl, and thianyl.
  • Exemplary 6– membered heterocyclyl groups containing two heteroatoms include, without limitation, piperazinyl, morpholinyl, dithianyl, dioxanyl.
  • Exemplary 6–membered heterocyclyl groups containing two heteroatoms include, without limitation, triazinanyl.
  • Exemplary 7–membered heterocyclyl groups containing one heteroatom include, without limitation, azepanyl, oxepanyl and thiepanyl.
  • Exemplary 8–membered heterocyclyl groups containing one heteroatom include, without limitation, azocanyl, oxecanyl and thiocanyl.
  • Exemplary 5–membered heterocyclyl groups fused to a C 6 aryl ring include, without limitation, indolinyl, isoindolinyl, dihydrobenzofuranyl, dihydrobenzothienyl, benzoxazolinonyl, and the like.
  • Exemplary 6–membered heterocyclyl groups fused to an aryl ring include, without limitation, tetrahydroquinolinyl, tetrahydroisoquinolinyl, and the like.
  • each W is selected from CR 67 , C(R 67 ) 2 , NR 67 , O, and S; and each Y is selected from NR 67 , O, and S; and R 67 is independently hydrogen, C 1 –C 8 alkyl, C 3 –C 10 cycloalkyl, 4–10 membered heterocyclyl, C 6 –C 10 aryl, and 5–10–membered heteroaryl.
  • heterocyclyl rings may be optionally substituted with one or more groups selected from the group consisting of acyl, acylamino, acyloxy, alkoxy, alkoxycarbonyl, alkoxycarbonylamino, amino, substituted amino, aminocarbonyl (e.g., amido), aminocarbonylamino, aminosulfonyl, sulfonylamino, aryl, aryloxy, azido, carboxyl, cyano, cycloalkyl, halogen, hydroxy, keto, nitro, thiol,–S–alkyl,–S– aryl,–S(O)–alkyl,–S(O)–aryl,–S(O) 2 –alkyl, and–S(O) 2 –aryl.
  • groups selected from the group consisting of acyl, acylamino, acyloxy, alkoxy, alkoxycarbonyl, alkoxycarbonylamino, amino, substituted amino
  • Substituting groups include carbonyl or thiocarbonyl which provide, for example, lactam and urea derivatives.
  • R 21 is C 1 –C 8 alkyl, substituted with halo or hydroxy; or C 3 –C 10 cycloalkyl, 4–10 membered heterocyclyl, C 6 –C 10 aryl, arylalkyl, 5–10 membered heteroaryl or heteroarylalkyl, each of which is substituted with unsubstituted C 1 –C 4 alkyl, halo, unsubstituted C 1 –C 4 alkoxy, unsubstituted C 1 –C 4 haloalkyl, unsubstituted C 1 –C 4 hydroxyalkyl, or unsubstituted C 1 –C 4 haloalkoxy or hydroxy.
  • “Acylamino” refers to a radical–NR 22 C(O)R 23 , where each instance of R 22 and R 23 is independently hydrogen, substituted or unsubstitued alkyl, substituted or unsubstitued alkenyl, substituted or unsubstitued alkynyl, substituted or unsubstitued carbocyclyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aryl, or substituted or unsubstitued heteroaryl, as defined herein, or R 22 is an amino protecting group.
  • Exemplary“acylamino” groups include, but are not limited to, formylamino, acetylamino, cyclohexylcarbonylamino, cyclohexylmethyl–carbonylamino, benzoylamino and benzylcarbonylamino.
  • Particular exemplary“acylamino” groups are–NR 24 C(O)–C 1 –C 8 alkyl,–NR 24 C(O)–(CH 2 ) t (C 6 –C 10 aryl),– NR 24 C(O)–(CH 2 ) t (5–10 membered heteroaryl),–NR 24 C(O)–(CH 2 ) t (C 3 –C 10 cycloalkyl), and– NR 24 C(O)–(CH 2 ) t (4–10 membered heterocyclyl), wherein t is an integer from 0 to 4, and each R 24 independently represents hydrogen or C 1 –C 8 alkyl.
  • R 25 is H, C 1 –C 8 alkyl, substituted with halo or hydroxy; C 3 –C 10 cycloalkyl, 4–10 membered heterocyclyl, C 6 – C 10 aryl, arylalkyl, 5–10 membered heteroaryl or heteroarylalkyl, each of which is substituted with unsubstituted C 1 –C 4 alkyl, halo, unsubstituted C 1 –C 4 alkoxy, unsubstituted C 1 –C 4 haloalkyl, unsubstituted C 1 –C 4 hydroxyalkyl, or unsubstituted C 1 –C 4 haloalkoxy or hydroxy; and R 26 is H, C 1 –C 8 alkyl, substituted with halo or hydroxy; C 3 –C 10 cycloalkyl, 4–10– membered heterocyclyl, C 6 –C 10 aryl, aryl
  • “Acyloxy” refers to a radical–OC(O)R 27 , where R 27 is hydrogen, substituted or unsubstitued alkyl, substituted or unsubstitued alkenyl, substituted or unsubstitued alkynyl, substituted or unsubstitued carbocyclyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aryl, or substituted or unsubstitued heteroaryl, as defined herein.
  • Representative examples include, but are not limited to, formyl, acetyl, cyclohexylcarbonyl,
  • R 28 is C 1 –C 8 alkyl, substituted with halo or hydroxy; C 3 –C 10 cycloalkyl, 4–10–membered heterocyclyl, C 6 – C 10 aryl, arylalkyl, 5–10–membered heteroaryl or heteroarylalkyl, each of which is substituted with unsubstituted C 1 –C 4 alkyl, halo, unsubstituted C 1 –C 4 alkoxy, unsubstituted C 1 –C 4 haloalkyl, unsubstituted C 1 –C 4 hydroxyalkyl, or unsubstituted C 1 –C 4 haloalkoxy or hydroxy.
  • Alkoxy refers to the group–OR 29 where R 29 is substituted or unsubstituted alkyl, substituted or unsubstitued alkenyl, substituted or unsubstitued alkynyl, substituted or unsubstitued carbocyclyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aryl, or substituted or unsubstitued heteroaryl.
  • Particular alkoxy groups are methoxy, ethoxy, n–propoxy, isopropoxy, n–butoxy, tert–butoxy, sec–butoxy, n–pentoxy, n–hexoxy, and 1,2– dimethylbutoxy.
  • Particular alkoxy groups are lower alkoxy, i.e., with between 1 and 6 carbon atoms. Further particular alkoxy groups have between 1 and 4 carbon atoms.
  • R 29 is a group that has 1 or more substituents, for instance from 1 to 5 substituents, and particularly from 1 to 3 substituents, in particular 1 substituent, selected from the group consisting of amino, substituted amino, C 6 –C 10 aryl, aryloxy, carboxyl, cyano, C 3 –C 10 cycloalkyl, 4–10 membered heterocyclyl, halogen, 5–10 membered heteroaryl, hydroxy, nitro, thioalkoxy, thioaryloxy, thiol, alkyl–S(O)–, aryl–S(O)–, alkyl–S(O) 2 – and aryl–S(O) 2 –.
  • substituents for instance from 1 to 5 substituents, and particularly from 1 to 3 substituents, in particular 1 substituent, selected from the group consisting of amino, substituted amino, C 6 –C 10 aryl, aryloxy, carboxyl, cyano, C 3
  • Exemplary“substituted alkoxy” groups include, but are not limited to,–O–(CH 2 ) t (C 6 –C 10 aryl), –O–(CH 2 ) t (5–10 membered heteroaryl),–O–(CH 2 ) t (C 3 –C 10 cycloalkyl), and–O–(CH 2 ) t (4–10 membered heterocyclyl), wherein t is an integer from 0 to 4 and any aryl, heteroaryl, cycloalkyl or heterocyclyl groups present, may themselves be substituted by unsubstituted C 1 –C 4 alkyl, halo, unsubstituted C 1 –C 4 alkoxy, unsubstituted C 1 –C 4 haloalkyl, unsubstituted C 1 –C 4 hydroxyalkyl, or unsubstituted C 1 –C 4 haloalkoxy or hydroxy.
  • Particular exemplary‘substituted alkoxy’ groups are–OCF 3 ,–OCH 2 CF 3 ,–OCH 2 Ph,–OCH 2 –cyclopropyl,–OCH 2 CH 2 OH, and– OCH 2 CH 2 Nme 2 .
  • Substituted amino refers to an amino group of the formula–N(R 38 ) 2 wherein R 38 is hydrogen, substituted or unsubstituted alkyl, substituted or unsubstitued alkenyl, substituted or unsubstitued alkynyl, substituted or unsubstitued carbocyclyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aryl, substituted or unsubstitued heteroaryl, or an amino protecting group, wherein at least one of R 38 is not a hydrogen.
  • each R 38 is independently selected from hydrogen, C 1 –C 8 alkyl, C 3 –C 8 alkenyl, C 3 –C 8 alkynyl, C 6 –C 10 aryl, 5–10 membered heteroaryl, 4–10 membered heterocyclyl, or C 3 –C 10 cycloalkyl; or C 1 –C 8 alkyl, substituted with halo or hydroxy; C 3 –C 8 alkenyl, substituted with halo or hydroxy; C 3 –C 8 alkynyl, substituted with halo or hydroxy, or–(CH 2 ) t (C 6 –C 10 aryl),–(CH 2 ) t (5–10 membered heteroaryl),–(CH 2 ) t (C 3 –C 10 cycloalkyl), or–(CH 2 ) t (4–10 membered heterocyclyl), wherein t is an integer between 0 and 8, each of which is substituted by
  • Exemplary“substituted amino” groups include, but are not limited to,–NR 39 –C 1 –C 8 alkyl,–NR 39 –(CH 2 ) t (C 6 –C 10 aryl),–NR 39 –(CH 2 ) t (5–10 membered heteroaryl),–NR 39 –
  • each R 39 independently represents hydrogen or C 1 –C 8 alkyl; and any alkyl groups present, may themselves be substituted by halo, substituted or unsubstituted amino, or hydroxy; and any aryl, heteroaryl, cycloalkyl, or heterocyclyl groups present, may themselves be substituted by unsubstituted C 1 –C 4 alkyl, halo, unsubstituted C 1 –C 4 alkoxy, unsubstituted C 1 –C 4 haloalkyl, unsubstituted C 1 –C 4 hydroxyalkyl, or unsubstituted C 1 – C 4 haloalkoxy or hydroxy.
  • substituted amino includes the groups alkylamino, substituted alkylamino, alkylarylamino, substituted alkylarylamino, arylamino, substituted arylamino, dialkylamino, and substituted dialkylamino as defined below.
  • Substituted amino encompasses both monosubstituted amino and disubstituted amino groups.
  • Substituted carbamoyl or“substituted amido” refers to the radical–C(O)N(R 62 ) 2 wherein each R 62 is independently hydrogen, substituted or unsubstituted alkyl, substituted or unsubstitued alkenyl, substituted or unsubstitued alkynyl, substituted or unsubstitued carbocyclyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aryl, substituted or unsubstitued heteroaryl, or an amino protecting group, wherein at least one of R 62 is not a hydrogen.
  • R 62 is selected from H, C 1 –C 8 alkyl, C 3 –C 10 cycloalkyl, 4–10 membered heterocyclyl, C 6 –C 10 aryl, and 5–10 membered heteroaryl; or C 1 –C 8 alkyl substituted with halo or hydroxy; or C 3 –C 10 cycloalkyl, 4–10 membered heterocyclyl, C 6 – C 10 aryl, or 5–10 membered heteroaryl, each of which is substituted by unsubstituted C 1 –C 4 alkyl, halo, unsubstituted C 1 –C 4 alkoxy, unsubstituted C 1 –C 4 haloalkyl, unsubstituted C 1 –C 4 hydroxyalkyl, or unsubstituted C 1 –C 4 haloalkoxy or hydroxy; provided that at least one R 62 is other than H.
  • Carboxy refers to the radical–C(O)OH.
  • Nonrogen–containing heterocyclyl means a 4– to 7– membered non–aromatic cyclic group containing at least one nitrogen atom, for example, but without limitation, morpholine, piperidine (e.g.2–piperidinyl, 3–piperidinyl and 4–piperidinyl), pyrrolidine (e.g.2– pyrrolidinyl and 3–pyrrolidinyl), azetidine, pyrrolidone, imidazoline, imidazolidinone, 2– pyrazoline, pyrazolidine, piperazine, and N–alkyl piperazines such as N–methyl piperazine. Particular examples include azetidine, piperidone and piperazone.
  • Alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl groups, as defined herein, are optionally substituted (e.g.,“substituted” or“unsubstituted” alkyl, “substituted” or“unsubstituted” alkenyl,“substituted” or“unsubstituted” alkynyl,“substituted” or“unsubstituted” carbocyclyl,“substituted” or“unsubstituted” heterocyclyl,“substituted” or “unsubstituted” aryl or“substituted” or“unsubstituted” heteroaryl group).
  • substituted means that at least one hydrogen present on a group (e.g., a carbon or nitrogen atom) is replaced with a permissible substituent, e.g., a substituent which upon substitution results in a stable compound, e.g., a compound which does not spontaneously undergo transformation such as by rearrangement, cyclization, elimination, or other reaction.
  • a“substituted” group has a substituent at one or more substitutable positions of the group, and when more than one position in any given structure is substituted, the substituent is either the same or different at each position.
  • substituted is contemplated to include substitution with all permissible substituents of organic compounds, any of the substituents described herein that results in the formation of a stable compound.
  • the present invention contemplates any and all such combinations in order to arrive at a stable compound.
  • heteroatoms such as nitrogen may have hydrogen substituents and/or any suitable substituent as described herein which satisfy the valencies of the heteroatoms and results in the formation of a stable moiety.
  • Exemplary carbon atom substituents include, but are not limited to, halogen,–CN,– NO 2 ,–N 3 ,–SO 2 H,–SO 3 H,–OH,–OR aa ,–ON(R bb ) 2 ,–N(R bb ) 2 ,–N(R bb ) +
  • BR aa (OR cc ), C 1–10 alkyl, C 1–10 perhaloalkyl, C 2–10 alkenyl, C 2–10 alkynyl, C 3–10 carbocyclyl, 3– 14 membered heterocyclyl, C 6–14 aryl, and 5–14 membered heteroaryl, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 R dd groups; each instance of R aa is, independently, selected from C 1–10 alkyl, C 1–10 perhaloalkyl, C 2–10 alkenyl, C 2–10 alkynyl, C 3–10 carbocyclyl, 3–14 membered heterocyclyl, C 6–14 aryl, and 5–14 membered heteroaryl, or two R aa groups are joined to form a 3–14 membere
  • A“counterion” or“anionic counterion” is a negatively charged group associated with a cationic quaternary amino group in order to maintain electronic neutrality.
  • exemplary counterions include halide ions (e.g., F – , Cl – , Br – , I – ), NO –
  • sulfonate ions e.g., methansulfonate, trifluoromethanesulfonate, p–toluenesulfonate, benzenesulfonate, 10–camphor sulfonate, naphthalene–2–sulfonate, naphthalene–1–sulfonic acid–5–sulfonate, ethan–1–sulfonic acid–2–sulfonate, and the like), and carboxylate ions (e.g., acetate, ethanoate, propanoate, benzoate, glycerate, lactate, tartrate, glycolate, and the like).
  • carboxylate ions e.g., acetate, ethanoate, propanoate, benzoate, glycerate, lactate, tartrate, glycolate, and the like.
  • Nitrogen atoms can be substituted or unsubstituted as valency permits, and include primary, secondary, tertiary, and quarternary nitrogen atoms.
  • the substituent present on a nitrogen atom is an amino protecting group (also referred to herein as a nitrogen protecting group).
  • Amino protecting groups are well known in the art and include those described in detail in Protecting Groups in Organic Synthesis, T. W. Greene and P. G. M. Wuts, 3 rd edition, John Wiley & Sons, 1999, incorporated herein by reference.
  • the substituent present on an oxygen atom is an oxygen protecting group (also referred to as a hydroxyl protecting group).
  • Oxygen protecting groups are well known in the art and include those described in detail in Protecting Groups in Organic Synthesis, T. W. Greene and P. G. M. Wuts, 3 rd edition, John Wiley & Sons, 1999, incorporated herein by reference.
  • oxygen protecting groups include, but are not limited to, methyl,
  • MCM methoxylmethyl
  • MEM 2–methoxyethoxymethyl
  • Bn benzyl
  • TIPS triisopropylsilyl
  • TDMS t–butyldimethylsilyl
  • TMPS t–butylmethoxyphenylsilyl
  • methanesulfonate methanesulfonate
  • Ts tosylate
  • the substituent present on an sulfur atom is an sulfur protecting group (also referred to as a thiol protecting group).
  • R aa , R bb , and R cc are as defined herein.
  • Sulfur protecting groups are well known in the art and include those described in detail in Protecting Groups in Organic Synthesis, T. W. Greene and P. G. M. Wuts, 3 rd edition, John Wiley & Sons, 1999, incorporated herein by reference.
  • the term“modulation” refers to the inhibition or potentiation of GABA receptor function.
  • A“modulator” e.g., a modulator compound
  • “Pharmaceutically acceptable” means approved or approvable by a regulatory agency of the Federal or a state government or the corresponding agency in countries other than the United States, or that is listed in the U.S. Pharmacopoeia or other generally recognized pharmacopoeia for use in animals, and more particularly, in humans.
  • “Pharmaceutically acceptable salt” refers to a salt of a compound of the invention that is pharmaceutically acceptable and that possesses the desired pharmacological activity of the parent compound.
  • such salts are non–toxic may be inorganic or organic acid addition salts and base addition salts.
  • such salts include: (1) acid addition salts, formed with inorganic acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid, phosphoric acid, and the like; or formed with organic acids such as acetic acid, propionic acid, hexanoic acid, cyclopentanepropionic acid, glycolic acid, pyruvic acid, lactic acid, malonic acid, succinic acid, malic acid, maleic acid, fumaric acid, tartaric acid, citric acid, benzoic acid, 3–(4–hydroxybenzoyl) benzoic acid, cinnamic acid, mandelic acid, methanesulfonic acid, ethanesulfonic acid, 1,2–ethane–disulfonic acid, 2–hydroxyethanesulfonic acid, benzenesulfonic acid, 4–chlorobenzenesulfonic acid, 2–naphthalenesulfonic acid, 4–toluen
  • Salts further include, by way of example only, sodium, potassium, calcium, magnesium, ammonium, tetraalkylammonium, and the like; and when the compound contains a basic functionality, salts of non-toxic organic or inorganic acids, such as hydrochloride, hydrobromide, tartrate, mesylate, acetate, maleate, oxalate and the like.
  • pharmaceutically acceptable cation refers to an acceptable cationic counter–ion of an acidic functional group. Such cations are exemplified by sodium, potassium, calcium, magnesium, ammonium, tetraalkylammonium cations, and the like. See, e.g., Berge, et al., J. Pharm. Sci. (1977) 66(1): 1–79.
  • Solvate refers to forms of the compound that are associated with a solvent or water (also referred to as“hydrate”), usually by a solvolysis reaction. This physical association includes hydrogen bonding.
  • solvents include water, ethanol, acetic acid, and the like.
  • the compounds of the invention may be prepared e.g. in crystalline form and may be solvated or hydrated.
  • Suitable solvates include pharmaceutically acceptable solvates, such as hydrates, and further include both stoichiometric solvates and non–stoichiometric solvates.
  • solvate will be capable of isolation, for example when one or more solvent molecules are incorporated in the crystal lattice of the crystalline solid.
  • “Solvate” encompasses both solution–phase and isolable solvates.
  • Representative solvates include hydrates, ethanolates and methanolates.
  • the term“isotopic variant” refers to a compound that contains unnatural proportions of isotopes at one or more of the atoms that constitute such compound.
  • an“isotopic variant” of a compound can contain one or more non–radioactive isotopes, such as for example, deuterium ( 2 H or D), carbon–13 ( 13 C), nitrogen–15 ( 15 N), or the like.
  • non–radioactive isotopes such as for example, deuterium ( 2 H or D), carbon–13 ( 13 C), nitrogen–15 ( 15 N), or the like.
  • the following atoms, where present may vary, so that for example, any hydrogen may be 2 H/D, any carbon may be 13 C, or any nitrogen may be 15 N, and that the presence and placement of such atoms may be determined within the skill of the art.
  • the invention may include the preparation of isotopic variants with radioisotopes, in the instance for example, where the resulting compounds may be used for drug and/or substrate tissue distribution studies.
  • the radioactive isotopes tritium, i.e., 3 H, and carbon–14, i.e., 14 C, are particularly useful for this purpose in view of their ease of incorporation and ready means of detection.
  • compounds may be prepared that are substituted with positron emitting isotopes, such as 11 C, 18 F, 15 O, and 13 N, and would be useful in Positron Emission Topography (PET) studies for examining substrate receptor occupancy. All isotopic variants of the compounds provided herein, radioactive or not, are intended to be encompassed within the scope of the invention.
  • Steps It is also to be understood that compounds that have the same molecular formula but differ in the nature or sequence of bonding of their atoms or the arrangement of their atoms in space are termed“isomers.” Isomers that differ in the
  • stereoisomers that are not mirror images of one another are termed“diastereomers” and those that are non–
  • enantiomers superimposable mirror images of each other are termed“enantiomers.”
  • An enantiomer can be characterized by the absolute configuration of its asymmetric center and is described by the R– and S–sequencing rules of Cahn and Prelog, or by the manner in which the molecule rotates the plane of polarized light and designated as dextrorotatory or levorotatory (i.e., as (+) or (–)–isomers respectively).
  • a chiral compound can exist as either individual enantiomer or as a mixture thereof. A mixture containing equal proportions of the enantiomers is called a“racemic mixture”.
  • Tautomers refer to compounds that are interchangeable forms of a particular compound structure, and that vary in the displacement of hydrogen atoms and electrons. Thus, two structures may be in equilibrium through the movement of ⁇ electrons and an atom (usually H). For example, enols and ketones are tautomers because they are rapidly interconverted by treatment with either acid or base. Another example of tautomerism is the aci– and nitro– forms of phenylnitromethane, that are likewise formed by treatment with acid or base. Tautomeric forms may be relevant to the attainment of the optimal chemical reactivity and biological activity of a compound of interest.
  • A“subject” to which administration is contemplated includes, but is not limited to, humans (i.e., a male or female of any age group, e.g., a pediatric subject (e.g, infant, child, adolescent) or adult subject (e.g., young adult, middle–aged adult or senior adult)) and/or a non- human animal, e.g., a mammal such as primates (e.g., cynomolgus monkeys, rhesus monkeys), cattle, pigs, horses, sheep, goats, rodents, cats, and/or dogs.
  • the subject is a human.
  • the subject is a non-human animal.
  • the terms“human,” “patient,” and“subject” are used interchangeably herein.
  • Disease, disorder, and condition are used interchangeably herein.
  • the terms“treat,”“treating” and “treatment” contemplate an action that occurs while a subject is suffering from the specified disease, disorder or condition, which reduces the severity of the disease, disorder or condition, or retards or slows the progression of the disease, disorder or condition (“therapeutic treatment”), and also contemplates an action that occurs before a subject begins to suffer from the specified disease, disorder or condition (“prophylactic treatment”).
  • the“effective amount” of a compound refers to an amount sufficient to elicit the desired biological response, e.g., to treat a CNS-related disorder, is sufficient to induce anesthesia or sedation.
  • the effective amount of a compound of the invention may vary depending on such factors as the desired biological endpoint, the pharmacokinetics of the compound, the disease being treated, the mode of administration, and the age, weight, health, and condition of the subject.
  • An effective amount encompasses therapeutic and prophylactic treatment.
  • a“therapeutically effective amount” of a compound is an amount sufficient to provide a therapeutic benefit in the treatment of a disease, disorder or condition, or to delay or minimize one or more symptoms associated with the disease, disorder or condition.
  • a therapeutically effective amount of a compound means an amount of therapeutic agent, alone or in combination with other therapies, which provides a therapeutic benefit in the treatment of the disease, disorder or condition.
  • “therapeutically effective amount” can encompass an amount that improves overall therapy, reduces or avoids symptoms or causes of disease or condition, or enhances the therapeutic efficacy of another therapeutic agent.
  • a“prophylactically effective amount” of a compound is an amount sufficient to prevent a disease, disorder or condition, or one or more symptoms associated with the disease, disorder or condition, or prevent its recurrence.
  • a prophylactically effective amount of a compound means an amount of a therapeutic agent, alone or in combination with other agents, which provides a prophylactic benefit in the prevention of the disease, disorder or condition.
  • the term“prophylactically effective amount” can encompass an amount that improves overall prophylaxis or enhances the prophylactic efficacy of another prophylactic agent.
  • the present invention provides C21-substituted neuroactive steroids designed, for example, to act as GABA modulators.
  • such compounds are envisioned to be useful as therapeutic agents for the inducement of anesthesia and/or sedation in a subject.
  • such compounds are envisioned to be useful as therapeutic agents for the inducement of anesthesia and/or sedation in a subject.
  • such compounds are envisioned to be useful as therapeutic agents for the inducement of anesthesia and/or sedation in a subject.
  • ring A is substituted or unsubstituted carbocyclyl, heterocyclyl, aryl, or heteroaryl
  • R 1 is hydrogen, substituted or unsubstituted C 1-6 alkyl, substituted or unsubstituted C 2-6 alkenyl, or substituted or unsubstituted C 3-6 carbocylyl
  • R 2 is hydrogen, substituted or unsubstituted C 1-6 alkyl, substituted or unsubstituted C 2-6 alkenyl, substituted or unsubstituted C 2-6 alkynyl, substituted or unsubstituted C 3-6 carbocylyl, or–OR A2 , wherein R A2 is hydrogen or substituted or unsubstituted C 1-6 alkyl, substituted or unsubstituted C 2-6 alkenyl, substituted or unsubstituted C 2-6 alkynyl, or substituted or unsubstituted C 3-6
  • a pharmaceutical composition comprising a compound of the Formula (I), (Ia), (Ib), (Ic-1), (Ic-2), (II), (II-a1), or (II-a2), and a pharmaceutically acceptable excipient.
  • a method of inducing sedation and/or anesthesia in a subject comprising administering to the subject an effective amount of a compound of the Formula (I), (Ia), (Ib), (Ic-1), (Ic-2), (II), (II-a1), or (II-a2), or a pharmaceutically acceptable salt thereof.
  • a compound of the Formula (I), (Ia), (Ib), (Ic-1), (Ic-2), (II), (II-a1), or (II-a2) to a subject in need thereof, wherein the subject experiences sedation and/or anesthesia within two hours of administration.
  • the subject experiences sedation and/or anesthesia within one hour of administration.
  • the subject experiences sedation and/or anesthesia
  • the compound is administered by intravenous administration.
  • the compound is administered chronically.
  • the subject is a mammal. In some embodiments, the subject is a human. [97] In some embodiments, the compound is administered in combination with another therapeutic agent.
  • a method for treating seizure in a subject comprising administering to the subject an effective amount of a compound of the Formula (I), (Ia), (Ib), (Ic-1), (Ic-2), (II), (II-a1), or (II-a2), or a pharmaceutically acceptable salt thereof.
  • a method for treating epilepsy or status or status epilepticus in a subject comprising administering to the subject an effective amount of a compound as described herein, e.g., a compound of the Formula (I), (Ia), (Ib), (Ic-1), (Ic-2), (II), (II-a1), or (II-a2), or a pharmaceutically acceptable salt thereof.
  • a compound as described herein e.g., a compound of the Formula (I), (Ia), (Ib), (Ic-1), (Ic-2), (II), (II-a1), or (II-a2), or a pharmaceutically acceptable salt thereof.
  • a method for treating disorders related to GABA function in a subject in need thereof comprising administering to the subject a therapeutically effective amount of a compound, a pharmaceutically acceptable salt thereof, or pharmaceutical composition of one of a compound as described herein, e.g., a compound of the Formula (I), (Ia), (Ib), (Ic-1), (Ic-2), (II), (II-a1), or (II-a2).
  • a method for treating a CNS-related disorder in a subject in need thereof comprising administering to the subject an effective amount of a compound as described herein, e.g., a compound of the Formula (I), (Ia), (Ib), (Ic-1), (Ic-2), (II), (II-a1), or (II-a2), or a pharmaceutically acceptable salt thereof.
  • a compound as described herein e.g., a compound of the Formula (I), (Ia), (Ib), (Ic-1), (Ic-2), (II), (II-a1), or (II-a2), or a pharmaceutically acceptable salt thereof.
  • the CNS-related disorder is a sleep disorder, a mood disorder such as depression, a schizophrenia spectrum disorder, a convulsive disorder, a disorder of memory and/or cognition, a movement disorder, a personality disorder, autism spectrum disorder, pain, traumatic brain injury, a vascular disease, a substance abuse disorder and/or withdrawal syndrome, or tinnitus.
  • the subject is a subject with Rett syndrome, Fragile X syndrome, or Angelman syndrome.
  • kits comprising a solid composition comprising a compound as described herein, e.g., a compound of the Formula (I), (Ia), (Ib), (Ic-1), (Ic-2), (II), (II-a1), or (II-a2); and a sterile diluent.
  • a compound as described herein e.g., a compound of the Formula (I), (Ia), (Ib), (Ic-1), (Ic-2), (II), (II-a1), or (II-a2)
  • a sterile diluent e.g., a compound of the Formula (I), (Ia), (Ib), (Ic-1), (Ic-2), (II), (II-a1), or (II-a2)
  • the invention provides a pharmaceutical composition
  • a pharmaceutical composition comprising a compound of the present invention (also referred to as the“active ingredient”) and a pharmaceutically acceptable excipient.
  • the pharmaceutical composition comprises an effective amount of the active ingredient.
  • the pharmaceutical composition comprises an effective amount of the active ingredient.
  • composition comprises a therapeutically effective amount of the active ingredient.
  • pharmaceutical composition comprises a
  • compositions provided herein can be administered by a variety of routes including, but not limited to, oral (enteral) administration, parenteral (by injection) administration, rectal administration, transdermal administration, intradermal administration, intrathecal administration, subcutaneous (SC) administration, intravenous (IV) administration, intramuscular (IM) administration, and intranasal administration (e.g., a nasal spray).
  • oral enteral
  • parenteral by injection
  • rectal administration transdermal administration
  • intradermal administration intrathecal administration
  • SC subcutaneous
  • IV intravenous
  • IM intramuscular
  • intranasal administration e.g., a nasal spray
  • the compounds provided herein are administered in an effective amount.
  • the amount of the compound actually administered will typically be determined by a physician, in the light of the relevant circumstances, including the condition to be treated, the chosen route of administration, the actual compound administered, the age, weight, and response of the individual patient, the severity of the patient’s symptoms, and the like.
  • the compounds provided herein When used to prevent the onset of a CNS-disorder, the compounds provided herein will be administered to a subject at risk for developing the condition, typically on the advice and under the supervision of a physician, at the dosage levels described above.
  • Subjects at risk for developing a particular condition generally include those that have a family history of the condition, or those who have been identified by genetic testing or screening to be particularly susceptible to developing the condition.
  • the pharmaceutical compositions provided herein can also be administered chronically (“chronic administration”).
  • Chronic administration refers to administration of a compound or pharmaceutical composition thereof over an extended period of time, e.g., for example, over 3 months, 6 months, 1 year, 2 years, 3 years, 5 years, etc, or may be continued indefinitely, for example, for the rest of the subject’s life.
  • the chronic administration is intended to provide a constant level of the compound in the blood, e.g., within the therapeutic window over the extended period of time.
  • the pharmaceutical composition may be given as a bolus, e.g., in order to raise the concentration of the compound in the blood to an effective level.
  • the placement of the bolus dose depends on the systemic levels of the active ingredient desired throughout the body, e.g., an intramuscular or subcutaneous bolus dose allows a slow release of the active ingredient, while a bolus delivered directly to the veins (e.g., through an IV drip) allows a much faster delivery which quickly raises the concentration of the active ingredient in the blood to an effective level.
  • the pharmaceutical composition may be administered as a continuous infusion, e.g., by IV drip, to provide maintenance of a steady-state concentration of the active ingredient in the subject’s body.
  • the pharmaceutical composition may be administered as first as a bolus dose, followed by continuous infusion.
  • compositions for oral administration can take the form of bulk liquid solutions or suspensions, or bulk powders. More commonly, however, the compositions are presented in unit dosage forms to facilitate accurate dosing.
  • unit dosage forms refers to physically discrete units suitable as unitary dosages for human subjects and other mammals, each unit containing a predetermined quantity of active material calculated to produce the desired therapeutic effect, in association with a suitable pharmaceutical excipient.
  • Typical unit dosage forms include prefilled, premeasured ampules or syringes of the liquid compositions or pills, tablets, capsules or the like in the case of solid compositions.
  • the compound is usually a minor component (from about 0.1 to about 50% by weight or preferably from about 1 to about 40% by weight) with the remainder being various vehicles or excipients and processing aids helpful for forming the desired dosing form.
  • each dose provides from about 0.01 to about 20 mg/kg of the compound provided herein, with preferred doses each providing from about 0.1 to about 10 mg/kg, and especially about 1 to about 5 mg/kg.
  • Transdermal doses are generally selected to provide similar or lower blood levels than are achieved using injection doses, generally in an amount ranging from about 0.01 to about 20% by weight, preferably from about 0.1 to about 20% by weight, preferably from about 0.1 to about 10% by weight, and more preferably from about 0.5 to about 15% by weight.
  • Injection dose levels range from about 0.1 mg/kg/hour to at least 20 mg/kg/hour, all for from about 1 to about 120 hours and especially 24 to 96 hours.
  • a preloading bolus of from about 0.1 mg/kg to about 10 mg/kg or more may also be administered to achieve adequate steady state levels. The maximum total dose is not expected to exceed about 5 g/day for a 40 to 80 kg human patient.
  • Liquid forms suitable for oral administration may include a suitable aqueous or nonaqueous vehicle with buffers, suspending and dispensing agents, colorants, flavors and the like.
  • Solid forms may include, for example, any of the following ingredients, or compounds of a similar nature: a binder such as microcrystalline cellulose, gum tragacanth or gelatin; an excipient such as starch or lactose, a disintegrating agent such as alginic acid, Primogel, or corn starch; a lubricant such as magnesium stearate; a glidant such as colloidal silicon dioxide; a sweetening agent such as sucrose or saccharin; or a flavoring agent such as peppermint, methyl salicylate, or orange flavoring.
  • a binder such as microcrystalline cellulose, gum tragacanth or gelatin
  • an excipient such as starch or lactose, a disintegrating agent such as alginic acid, Primogel, or corn starch
  • Injectable compositions are typically based upon injectable sterile saline or phosphate- buffered saline or other injectable excipients known in the art.
  • the active compound in such compositions is typically a minor component, often being from about 0.05 to 10% by weight with the remainder being the injectable excipient and the like.
  • Transdermal compositions are typically formulated as a topical ointment or cream containing the active ingredient(s).
  • the active ingredients When formulated as a ointment, the active ingredients will typically be combined with either a paraffinic or a water-miscible ointment base. Alternatively, the active ingredients may be formulated in a cream with, for example an oil-in-water cream base.
  • Such transdermal formulations are well-known in the art and generally include additional ingredients to enhance the dermal penetration of stability of the active ingredients or
  • transdermal administration can be accomplished using a patch either of the reservoir or porous membrane type, or of a solid matrix variety.
  • the compounds of the present invention can also be administered in sustained release forms or from sustained release drug delivery systems.
  • sustained release materials can be found in Remington’s Pharmaceutical Sciences.
  • the present invention also relates to the pharmaceutically acceptable acid addition salt of a compound of the present invention.
  • the acid which may be used to prepare the
  • pharmaceutically acceptable salt is that which forms a non-toxic acid addition salt, i.e., a salt containing pharmacologically acceptable anions such as the hydrochloride, hydroiodide, hydrobromide, nitrate, sulfate, bisulfate, phosphate, acetate, lactate, citrate, tartrate, succinate, maleate, fumarate, benzoate, para-toluenesulfonate, and the like.
  • a non-toxic acid addition salt i.e., a salt containing pharmacologically acceptable anions such as the hydrochloride, hydroiodide, hydrobromide, nitrate, sulfate, bisulfate, phosphate, acetate, lactate, citrate, tartrate, succinate, maleate, fumarate, benzoate, para-toluenesulfonate, and the like.
  • the invention provides a pharmaceutical composition
  • a pharmaceutical composition comprising a compound of the present invention and a pharmaceutically acceptable excipient, e.g., a composition suitable for injection, such as for intravenous (IV) administration.
  • a pharmaceutically acceptable excipient e.g., a composition suitable for injection, such as for intravenous (IV) administration.
  • compositions agents include any and all diluents or other liquid vehicles, dispersion or suspension aids, surface active agents, isotonic agents, preservatives, lubricants and the like, as suited to the particular dosage form desired, e.g., injection.
  • General considerations in the formulation and/or manufacture of pharmaceutical compositions agents can be found, for example, in Remington’s Pharmaceutical Sciences, Sixteenth Edition, E. W. Martin (Mack Publishing Co., Easton, Pa., 1980), and Remington: The Science and Practice of Pharmacy, 21 st Edition (Lippincott Williams & Wilkins, 2005).
  • injectable preparations such as sterile injectable aqueous suspensions
  • suitable dispersing or wetting agents and suspending agents include, but are not limited to, water, sterile saline or phosphate–buffered saline, or Ringer’s solution.
  • the pharmaceutical composition further comprises a cyclodextrin derivative.
  • the most common cyclodextrins are ⁇ –, ⁇ – and ⁇ – cyclodextrins consisting of 6, 7 and 8 ⁇ –l ,4–linked glucose units, respectively, optionally comprising one or more substituents on the linked sugar moieties, which include, but are not limited to, substituted or unsubstituted methylated, hydroxyalkylated, acylated, and sulfoalkylether substitution.
  • the cyclodextrin is a sulfoalkyl ether ⁇ –cyclodextrin, e.g., for example, sulfobutyl ether ⁇ –cyclodextrin, also known as Captisol®. See, e.g., U.S.5,376,645.
  • the composition comprises hexapropyl– ⁇ –cyclodextrin. In a more particular embodiment, the composition comprises hexapropyl– ⁇ –cyclodextrin (10–50% in water).
  • the injectable composition can be sterilized, for example, by filtration through a bacterial–retaining filter, or by incorporating sterilizing agents in the form of sterile solid compositions which can be dissolved or dispersed in sterile water or other sterile injectable medium prior to use.
  • the compounds provided herein are administered in an effective amount.
  • the amount of the compound actually administered will typically be determined by a physician, in the light of the relevant circumstances, including the condition to be treated, the chosen route of administration, the actual compound administered, the age, weight, response of the individual patient, the severity of the patient’s symptoms, and the like.
  • compositions are presented in unit dosage forms to facilitate accurate dosing.
  • unit dosage forms refers to physically discrete units suitable as unitary dosages for human subjects and other mammals, each unit containing a predetermined quantity of active material calculated to produce the desired therapeutic effect, in association with a suitable pharmaceutical excipient.
  • Typical unit dosage forms include pre–filled, pre–measured ampules or syringes of the liquid compositions.
  • the compound is usually a minor component (from about 0.1% to about 50% by weight or preferably from about 1% to about 40% by weight) with the remainder being various vehicles or carriers and processing aids helpful for forming the desired dosing form.
  • the compounds provided herein can be administered as the sole active agent, or they can be administered in combination with other active agents.
  • the present invention provides a combination of a compound of the present invention and another pharmacologically active agent. Administration in combination can proceed by any technique apparent to those of skill in the art including, for example, separate, sequential, concurrent, and alternating administration.
  • pharmaceutical compositions provided herein are principally directed to pharmaceutical compositions which are suitable for administration to humans, it will be understood by the skilled artisan that such compositions are generally suitable for administration to animals of all sorts.
  • compositions suitable for administration to humans in order to render the compositions suitable for administration to various animals is well understood, and the ordinarily skilled veterinary pharmacologist can design and/or perform such modification with ordinary experimentation.
  • General considerations in the formulation and/or manufacture of pharmaceutical compositions can be found, for example, in Remington: The Science and Practice of Pharmacy 21 st ed., Lippincott Williams & Wilkins, 2005.
  • the present invention is directed to C21-substituted neuroactive steroids designed, for example, to act as GABA modulators.
  • C21-substituted neuroactive steroids designed, for example, to act as GABA modulators.
  • such compounds are envisioned to be useful as therapeutic agents for the inducement of anesthesia and/or sedation in a subject.
  • such compounds are envisioned to be useful as therapeutic agents for treating a CNS-related disorder (e.g., sleep disorder, a mood disordersuch as depression, a schizophrenia spectrum disorder, a convulsive disorder, a disorder of memory and/or cognition, a movement disorder, a personality disorder, autism spectrum disorder, pain, traumatic brain injury, a vascular disease, a substance abuse disorder and/or withdrawal syndrome, or tinnitus) in a subject in need (e.g., a subject with Rett syndrome, Fragile X syndrome, or Angelman syndrome).
  • a CNS-related disorder e.g., sleep disorder, a mood disordersuch as depression, a schizophrenia spectrum disorder, a convulsive disorder, a disorder of memory and/or cognition, a movement disorder, a personality disorder, autism spectrum disorder, pain, traumatic brain injury, a vascular disease, a substance abuse
  • the present invention provides a method of inducing sedation and/or anesthesia in a subject, comprising administering to the subject an effective amount of a compound of the present invention or a composition thereof.
  • the compound is administered by intravenous administration.
  • Compounds of the present invention are generally designed to modulate GABA function, and therefore to act as neuroactive steroids for the treatment and prevention of CNS–related conditions in a subject. Modulation, as used herein, refers to the inhibition or potentiation of GABA receptor function. Accordingly, the compounds and pharmaceutical compositions provided herein find use as therapeutics for preventing and/or treating CNS conditions in mammals including humans and non-human mammals. Thus, and as stated earlier, the present invention includes within its scope, and extends to, the recited methods of treatment, as well as to the compounds for such methods, and to the use of such compounds for the preparation of medicaments useful for such methods.
  • Exemplary CNS conditions related to GABA-modulation include, but are not limited to, sleep disorders [e.g., insomnia], mood disorders [e.g., depression, dysthymic disorder (e.g., mild depression), bipolar disorder (e.g., I and/or II), anxiety disorders (e.g., generalized anxiety disorder (GAD), social anxiety disorder), stress, post-traumatic stress disorder (PTSD), compulsive disorders (e.g., obsessive compulsive disorder (OCD))], schizophrenia spectrum disorders [e.g., schizophrenia, schizoaffective disorder], convulsive disorders [e.g., epilepsy (e.g., status epilepticus (SE)), seizures], disorders of memory and/or cognition [e.g., attention disorders (e.g., attention deficit hyperactivity disorder (ADHD)), dementia (e.g., Alzheimer’s type dementia, Lewis body type dementia, vascular type dementia], movement disorders [e.g., Huntington’s disease, Parkinson’s disease], personality disorders
  • a combination of a compound of the present invention and another pharmacologically active agent is provided.
  • the compounds provided herein can be administered as the sole active agent or they can be administered in combination with other agents. Administration in combination can proceed by any technique apparent to those of skill in the art including, for example, separate, sequential, concurrent and alternating administration.
  • a method of treating or preventing brain excitability in a subject susceptible to or afflicted with a condition associated with brain excitability comprising administering to the subject an effective amount of a compound of the present invention to the subject.
  • a method of alleviating or preventing seizure activity in a subject comprising administering to the subject in need of such treatment an effective amount of a compound of the present invention.
  • a method of alleviating or preventing insomnia in a subject comprising administering to the subject in need of such treatment an effective amount of a compound of the present invention, or a composition thereof.
  • a method of inducing sleep and maintaining substantially the level of REM sleep that is found in normal sleep, wherein substantial rebound insomnia is not induced comprising administering an effective amount of a compound of the present invention.
  • a method of alleviating or preventing PMS or PND in a subject comprising administering to the subject in need of such treatment an effective amount of a compound of the present invention.
  • a method of treating or preventing mood disorders in a subject comprising administering to the subject in need of such treatment an effective amount of a compound of the present invention.
  • the mood disorder is depression.
  • a method of inducing anesthesia in a subject comprising administering to the subject an effective amount of a compound of the present invention.
  • a method of cognition enhancement or treating memory disorder by administering to the subject a therapeutically effective amount of a compound of the present invention.
  • the disorder is Alzheimer’s disease.
  • the disorder is Rett syndrome.
  • the attention disorder is ADHD.
  • the compound is administered to the subject chronically. In certain embodiments, the compound is administered to the subject orally, subcutaneously, intramuscularly, or intravenously. Neurodegenerative Diseases and Disorders
  • the compounds described herein can be used in a method described herein, for example in the treatment of a disorder described herein such as a neurodegenerative disease.
  • neurodegenerative disease includes diseases and disorders that are associated with the progressive loss of structure or function of neurons, or death of neurons.
  • Neurodegenerative diseases and disorders include, but are not limited to, Alzheimer’s disease (including the associated symptoms of mild, moderate, or severe cognitive impairment);
  • amyotrophic lateral sclerosis ALS
  • anoxic and ischemic injuries including for the treatment and prevention and prevention of seizures that are caused by schizoaffective disorder or by drugs used to treat schizophrenia
  • benign forgetfulness brain edema
  • cerebellar ataxia including McLeod neuroacanthocytosis syndrome (MLS); closed head injury; coma; contusive injuries (e.g., spinal cord injury and head injury); dementias including multi-infarct dementia and senile dementia; disturbances of consciousness; Down syndrome; drug-induced or medication-induced Parkinsonism (such as neuroleptic-induced acute akathisia, acute dystonia, Parkinsonism, or tardive dyskinesia, neuroleptic malignant syndrome, or medication-induced postural tremor); epilepsy; fragile X syndrome; Gilles de la Tourette’s syndrome; head trauma; hearing impairment and loss; Huntington’s disease; Lennox syndrome; levodopa-induced dyskinesia; mental
  • neuroacanthocytosis Sydenham’s chorea, and symptomatic chorea
  • dyskinesia including tics such as complex tics, simple tics, and symptomatic tics
  • myoclonus including generalized myoclonus and focal cyloclonus
  • tremor such as rest tremor, postural tremor, and intention tremor
  • dystonia including axial dystonia, dystonic writer’s cramp, hemiplegic dystonia, paroxysmal dystonia, and focal dystonia such as blepharospasm, oromandibular dystonia, and spasmodic dysphonia and torticollis
  • neuronal damage including ocular damage, retinopathy or macular degeneration of the eye
  • neurotoxic injury which follows cerebral stroke, thromboembolic stroke, hemorrhagic stroke, cerebral ischemia, cerebral vasospasm, hypoglycemia, amnesia, hypoxia, anoxia,
  • Neurodegenerative diseases also include, but are not limited to, neurotoxic injury which follows cerebral stroke, thromboembolic stroke, hemorrhagic stroke, cerebral ischemia, cerebral vasospasm, hypoglycemia, amnesia, hypoxia, anoxia, perinatal asphyxia and cardiac arrest.
  • Methods of treating or preventing a neurodegenerative disease also include treating or preventing loss of neuronal function characteristic of neurodegenerative disorder.
  • the compounds described herein can be used in a method described herein, for example in the treatment of a disorder described herein such as a mood disorder.
  • Clinical depression is also known as major depression, major depressive disorder (MDD), severe depression, unipolar depression, unipolar disorder, and recurrent depression, and refers to a mental disorder characterized by pervasive and persistent low mood that is accompanied by low self-esteem and loss of interest or pleasure in normally enjoyable activities. Some people with clinical depression have trouble sleeping, lose weight, and generally feel agitated and irritable. Clinical depression affects how an individual feels, thinks, and behaves and may lead to a variety of emotional and physical problems. Individuals with clinical depression may have trouble doing day-to-day activities and make an individual feel as if life is not worth living.
  • MDD major depressive disorder
  • Postnatal depression is also referred to as postpartum depression (PPD), and refers to a type of clinical depression that affects women after childbirth. Symptoms can include sadness, fatigue, changes in sleeping and eating habits, reduced sexual desire, crying episodes, anxiety, and irritability.
  • the PND is a treatment-resistant depression (e.g., a treatment-resistant depression as described herein).
  • the PND is refractory depression (e.g., a refractory depression as described herein).
  • AD Atypical depression
  • mood reactivity e.g., paradoxical anhedonia
  • positivity significant weight gain or increased appetite.
  • Patients suffering from AD also may have excessive sleep or somnolence (hypersomnia), a sensation of limb heaviness, and significant social impairment as a consequence of hypersensitivity to perceived
  • Melancholic depression is characterized by loss of pleasure (anhedonia) in most or all activities, failures to react to pleasurable stimuli, depressed mood more pronounced than that of grief or loss, excessive weight loss, or excessive guilt.
  • PMD Psychitic major depression
  • psychotic depression refers to a major depressive episode, in particular of melancholic nature, where the individual experiences psychotic symptoms such as delusions and hallucinations.
  • Catatonic depression refers to major depression involving disturbances of motor behavior and other symptoms. An individual may become mute and stuporose, and either is immobile or exhibits purposeless or playful movements.
  • SAD Seasonal affective disorder
  • Dysthymia refers to a condition related to unipolar depression, where the same physical and cognitive problems are evident. They are not as severe and tend to last longer (e.g., at least 2 years).
  • Double depression refers to fairly depressed mood (dysthymia) that lasts for at least 2 years and is punctuated by periods of major depression.
  • DPD Depressive Personality Disorder
  • RBD Recurrent Brief Depression
  • Minor depressive disorder or minor depression refers to a depression in which at least 2 symptoms are present for 2 weeks.
  • Bipolar disorder or manic depressive disorder causes extreme mood swings that include emotional highs (mania or hypomania) and lows (depression).
  • emotional highs mania or hypomania
  • lows depression
  • mania the individual may feel or act abnormally happy, energetic, or irritable. They often make poorly thought out decisions with little regard to the consequnces.
  • the need for sleep is usually reduced.
  • depression there may be crying, poor eye contact with others, and a negative outlook on life.
  • the risk of suicide among those with the disorder is high at greater than 6% over 20 years, while self harm occurs in 30-40%.
  • Other mental health issues such as anxiety disorder and substance use disorder are commonly associated with bipolar disorder.
  • Depression caused by chronic medical conditions refers to depression caused by chronic medical conditions such as cancer or chronic pain, chemotherapy, chronic stress.
  • Treatment-resistant depression refers to a condition where the individuals have been treated for depression, but the symptoms do not improve.
  • antidepressants or physchological counseling do not ease depression symptoms for individuals with treatment-resistant depression.
  • individuals with treatment-resistant depression improve symptoms, but come back.
  • Refractory depression occurs in patients suffering from depression who are resistant to standard pharmacological treatments, including tricyclic antidepressants, MAOIs, SSRIs, and double and triple uptake inhibitors and/or anxiolytic drugs, as well as non-pharmacological treatments (e.g., psychotherapy,
  • electroconvulsive therapy vagus nerve stimulation and/or transcranial magnetic stimulation.
  • Suicidality, suicidal ideation, suicidal behavior refers to the tendency of an individual to commit suicide.
  • Suicidal ideation concerns thoughts about or an unusual preoccupation with suicide.
  • the range of suicidal ideation varies greatly, from e.g., fleeting thoughts to extensive thoughts, detailed planning, role playing, incomplete attempts. Symptoms include talking about suicide, getting the means to commit suicide, withdrawing from social contact, being preoccupied with death, feeling trapped or hopeless about a situation, increasing use of alcohol or drugs, doing risky or self-destructive things, saying goodbye to people as if they won’t be seen again.
  • PMDD Premenstrual dysphoric disorder
  • PMS premenstrual syndrome
  • Symptoms of depression include persistent anxious or sad feelings, feelings of helplessness, hopelessness, pessimism, worthlessness, low energy, restlessness, irritability, fatigue, loss of interest in pleasurable activities or hobbies, absence of positive thoughts or plans, excessive sleeping, overeating, appetite loss, insomnia,self-harm, thoughts of suicide, and suicide attempts.
  • the presence, severity, frequency, and duration of symptoms may vary on a case to case basis. Symptoms of depression, and relief of the same, may be ascertained by a physician or psychologist (e.g., by a mental state examination).
  • the compounds described herein can be used in a method described herein, for example in the treatment of a disorder described herein such as an anxiety disorder.
  • Anxiety disorder is a blanket term covering several different forms of abnormal and pathological fear and anxiety.
  • Current psychiatric diagnostic criteria recognize a wide variety of anxiety disorders.
  • Generalized anxiety disorder is a common chronic disorder characterized by long- lasting anxiety that is not focused on any one object or situation. Those suffering from generalized anxiety experience non-specific persistent fear and worry and become overly concerned with everyday matters. Generalized anxiety disorder is the most common anxiety disorder to affect older adults.
  • panic disorder a person suffers from brief attacks of intense terror and apprehension, often marked by trembling, shaking, confusion, dizziness, nausea, difficulty breathing.
  • panic attacks defined by the APA as fear or discomfort that abruptly arises and peaks in less than ten minutes, can last for several hours and can be triggered by stress, fear, or even exercise; although the specific cause is not always apparent.
  • a diagnosis of panic disorder also requires that said attacks have chronic consequences: either worry over the attacks’ potential implications, persistent fear of future attacks, or significant changes in behavior related to the attacks. Accordingly, those suffering from panic disorder experience symptoms even outside of specific panic episodes.
  • Obsessive compulsive disorder is a type of anxiety disorder primarily characterized by repetitive obsessions (distressing, persistent, and intrusive thoughts or images) and compulsions (urges to perform specific acts or rituals).
  • the OCD thought pattern may be likened to superstitions insofar as it involves a belief in a causative relationship where, in reality, one does not exist.
  • the process is entirely illogical; for example, the compulsion of walking in a certain pattern may be employed to alleviate the obsession of impending harm.
  • the compulsion is entirely inexplicable, simply an urge to complete a ritual triggered by nervousness.
  • sufferers of OCD may only experience obsessions, with no overt compulsions; a much smaller number of sufferers experience only compulsions.
  • the single largest category of anxiety disorders is that of phobia, which includes all cases in which fear and anxiety is triggered by a specific stimulus or situation. Sufferers typically anticipate cosmic consequences from encountering the object of their fear, which can be anything from an animal to a location to a bodily fluid.
  • Post-traumatic stress disorder or PTSD is an anxiety disorder which results from a traumatic experience.
  • Post-traumatic stress can result from an extreme situation, such as combat, rape, hostage situations, or even serious accident. It can also result from long term (chronic) exposure to a severe stressor, for example soldiers who endure individual battles but cannot cope with continuous combat. Common symptoms include flashbacks, avoidant behaviors, and depression. Eating Disorders
  • Eating disorders feature disturbances in eating behavior and weight regulation, and are associated with a wide range of adverse psychological, physical, and social consequences.
  • An individual with an eating disorder may start out just eating smaller or larger amounts of food, but at some point, their urge to eat less or more spirals out of control.
  • Eating disorders may be characterized by severe distress or concern about body weight or shape, or extreme efforts to manage weight or food intake.
  • Eating disorders include anorexia nervosa, bulimia nervosa, binge-eating disorder, cachexia, and their variants.
  • Individuals with anorexia nervosa typically see themselves as overweight, even when they are underweight. Individuals with anorexia nervosa can become overwhelmed with eating, food, and weight control. Individuals with anorexia nervosa typically weigh themselves repeatedly, portion food carefully, and eat very small quantities of only certain foods. Individuals with anorexia nervosa may engage in binge eating, followed by extreme dieting, excessive exercise, self-induced vomiting, or misuse of laxatives, diuretics, or enemas. Symptoms include extremely low body weight, severe food restriction, relentless pursuit of thinness and
  • Cachexia is also known as“wasting disorder,” and is an eating-related issue experienced by many cancer patients. Individuals with cachexia may continue to eat normally, but their body may refuse to utilize the vitamins and nutrients that it is ingesting, or they will lose their appetite and stop eating. When an individual experiences loss of appetite and stops eating, they can be considered to have developed anorexia nervosa.
  • the compounds described herein can be used in a method described herein, for example in the treatment of a disorder described herein such as epilepsy, status epilepticus, or seizure, for example as described in WO2013/112605 and WO/2014/031792, the contents of which are incorporated herein in their entirety.
  • a disorder described herein such as epilepsy, status epilepticus, or seizure, for example as described in WO2013/112605 and WO/2014/031792, the contents of which are incorporated herein in their entirety.
  • Epilepsy is a brain disorder characterized by repeated seizures over time.
  • Types of epilepsy can include, but are not limited to generalized epilepsy, e.g., childhood absence epilepsy, juvenile nyoclonic epilepsy, epilepsy with grand-mal seizures on awakening, West syndrome, Lennox-Gastaut syndrome, partial epilepsy, e.g., temporal lobe epilepsy, frontal lobe epilepsy, benign focal epilepsy of childhood.
  • generalized epilepsy e.g., childhood absence epilepsy, juvenile nyoclonic epilepsy, epilepsy with grand-mal seizures on awakening, West syndrome, Lennox-Gastaut syndrome
  • partial epilepsy e.g., temporal lobe epilepsy, frontal lobe epilepsy, benign focal epilepsy of childhood.
  • Status epilepticus can include, e.g., convulsive status epilepticus, e.g., early status epilepticus, established status epilepticus, refractory status epilepticus, super-refractory status epilepticus; non-convulsive status epilepticus, e.g., generalized status epilepticus, complex partial status epilepticus; generalized periodic epileptiform discharges; and periodic lateralized epileptiform discharges.
  • convulsive status epilepticus e.g., early status epilepticus, established status epilepticus, refractory status epilepticus, super-refractory status epilepticus
  • non-convulsive status epilepticus e.g., generalized status epilepticus, complex partial status epilepticus
  • generalized periodic epileptiform discharges e.g., periodic epileptiform discharges.
  • Convulsive status epilepticus is characterized by the presence of convulsive status epileptic seizures, and can include early status epilepticus, established status epilepticus, refractory status epilepticus, super-refractory status epilepticus. Early status epilepticus is treated with a first line therapy. Established status epilepticus is characterized by status epileptic seizures which persist despite treatment with a first line therapy, and a second line therapy is administered. Refractory status epilepticus is characterized by status epileptic seizures which persist despite treatment with a first line and a second line therapy, and a general anesthetic is generally administered.
  • Super refractory status epilepticus is characterized by status epileptic seizures which persist despite treatment with a first line therapy, a second line therapy, and a general anesthetic for 24 hours or more.
  • Non-convulsive status epilepticus can include, e.g., focal non-convulsive status epilepticus, e.g., complex partial non-convulsive status epilepticus, simple partial non-convulsive status epilepticus, subtle non-convulsive status epilepticus; generalized non-convulsive status epilepticus, e.g., late onset absence non-convulsive status epilepticus, atypical absence non- convulsive status epilepticus, or typical absence non-convulsive status epilepticus.
  • compositions described herein can also be administered as a prophylactic to a subject having a CNS disorder e.g., a traumatic brain injury, status epilepticus, e.g., convulsive status epilepticus, e.g., early status epilepticus, established status epilepticus, refractory status epilepticus, super-refractory status epilepticus; non-convulsive status epilepticus, e.g., generalized status epilepticus, complex partial status epilepticus; generalized periodic epileptiform discharges; and periodic lateralized epileptiform discharges; prior to the onset of a seizure.
  • a CNS disorder e.g., a traumatic brain injury
  • status epilepticus e.g., convulsive status epilepticus, e.g., early status epilepticus, established status epilepticus, refractory status epilepticus, super-refractory status epilepticus
  • Seizure A seizure is the physical findings or changes in behavior that occur after an episode of abnormal electrical activity in the brain.
  • the term“seizure” is often used interchangeably with “convulsion.” Convulsions are when a person’s body shakes rapidly and uncontrollably. During convulsions, the person’s muscles contract and relax repeatedly. Based on the type of behavior and brain activity, seizures are divided into two broad categories: generalized and partial (also called local or focal). Classifying the type of seizure helps doctors diagnose whether or not a patient has epilepsy. Generalized seizures are produced by electrical impulses from throughout the entire brain, whereas partial seizures are produced (at least initially) by electrical impulses in a relatively small part of the brain.
  • the part of the brain generating the seizures is sometimes called the focus.
  • the generalized convulsion also called the grand-mal seizure.
  • the patient loses consciousness and usually collapses.
  • the loss of consciousness is followed by generalized body stiffening (called the“tonic” phase of the seizure) for 30 to 60 seconds, then by violent jerking (the“clonic” phase) for 30 to 60 seconds, after which the patient goes into a deep sleep (the“postictal” or after-seizure phase).
  • the“postictal” or after-seizure phase During grand- mal seizures, injuries and accidents may occur, such as tongue biting and urinary incontinence.
  • Absence seizures cause a short loss of consciousness (just a few seconds) with few or no symptoms.
  • the patient most often a child, typically interrupts an activity and stares blankly. These seizures begin and end abruptly and may occur several times a day.
  • Patients are usually not aware that they are having a seizure, except that they may be aware of“losing time.”
  • Myoclonic seizures consist of sporadic jerks, usually on both sides of the body. Patients sometimes describe the jerks as brief electrical shocks. When violent, these seizures may result in dropping or involuntarily throwing objects.
  • Clonic seizures are repetitive, rhythmic jerks that involve both sides of the body at the same time. Tonic seizures are characterized by stiffening of the muscles.
  • Atonic seizures consist of a sudden and general loss of muscle tone, particularly in the arms and legs, which often results in a fall.
  • Seizures described herein can include epileptic seizures; acute repetitive seizures; cluster seizures; continuous seizures; unremitting seizures; prolonged seizures; recurrent seizures; status epilepticus seizures, e.g., refractory convulsive status epilepticus, non-convulsive status epilepticus seizures; refractory seizures; myoclonic seizures; tonic seizures; tonic-clonic seizures; simple partial seizures; complex partial seizures; secondarily generalized seizures; atypical absence seizures; absence seizures; atonic seizures; benign Rolandic seizures; febrile seizures; emotional seizures; focal seizures; gelastic seizures; generalized onset seizures;
  • infantile spasms Jacksonian seizures; massive bilateral myoclonus seizures; multifocal seizures; neonatal onset seizures; nocturnal seizures; occipital lobe seizures; post traumatic seizures; subtle seizures; Sylvan seizures; visual reflex seizures; or withdrawal seizures.
  • the compounds described herein can be used in a method described herein, for example in the treatment of a disorder described herein such as tremor.
  • Tremor is an involuntary, at times rhythmic, muscle contraction and relaxation that can involve oscillations or twitching of one or more body parts (e.g., hands, arms, eyes, face, head, vocal folds, trunk, legs).
  • body parts e.g., hands, arms, eyes, face, head, vocal folds, trunk, legs.
  • Cerebellar tremor or intention tremor is a slow, broad tremor of the extremities that occurs after a purposeful movement. Cerebellar tremor is caused by lesions in or damage to the cerebellum resulting from, e.g., tumor, stroke, disease (e.g., multiple sclerosis, an inherited degenerative disorder).
  • Dystonic tremor occurs in individuals affected by dystonia, a movement disorder in which sustained involuntary muscle contractions cause twisting and repetitive motions and/or painful and abnormal postures or positions.
  • Dystonic tremor may affect any muscle in the body.
  • Dystonic tremors occurs irregularly and often can be relieved by complete rest.
  • Essential tremor or benign essential tremor is the most common type of tremor.
  • Essential tremor may be mild and nonprogressive in some, and may be slowly progressive, starting on one side of the body but affect both sides within 3 years. The hands are most often affected, but the head, voice, tongue, legs, and trunk may also be involved. Tremor frequency may decrease as the person ages, but severity may increase. Heightened emotion, stress, fever, physical exhaustion, or low blood sugar may trigger tremors and/or increase their severity. Orthostatic tremor is characterized by fast (e.g., greater than 12 Hz) rhythmic muscle contractions that occurs in the legs and trunk immediately after standing. Cramps are felt in the thighs and legs and the patient may shake uncontrollably when asked to stand in one spot. Orthostatic tremor may occurs in patients with essential tremor.
  • Parkinsonian tremor is caused by damage to structures within the brain that control movement. Parkinsonian tremor is often a precursor to Parkinson’s disease and is typically seen as a“pill-rolling” action of the hands that may also affect the chin, lips, legs, and trunk. Onset of parkinsonian tremor typically begins after age 60. Movement starts in one limb or on one side of the body and can progress to include the other side.
  • Physiological tremor can occur in normal individuals and have no clinical significance. It can be seen in all voluntary muscle groups. Physiological tremor can be caused by certain drugs, alcohol withdrawl, or medical conditions including an overactive thyroid and
  • the tremor classically has a frequency of about 10 Hz.
  • Psychogenic tremor or hysterical tremor can occur at rest or during postural or kinetic movement.
  • Patient with psychogenic tremor may have a conversion disorder or another psychiatric disease.
  • Rubral tremor is characterized by coarse slow tremor which can be present at rest, at posture, and with intention.
  • the tremor is associated with conditions that affect the red nucleus in the midbrain, classical unusual strokes.
  • Anesthesia / Sedation The compounds described herein can be used in a method described herein, for example to induce anesthesia or sedation.
  • Anesthesia is a pharmacologically induced and reversible state of amnesia, analgesia, loss of responsiveness, loss of skeletal muscle reflexes, decreased stress response, or all of these simultaneously.
  • Sedation and analgesia include a continuum of states of consciousness ranging from minimal sedation (anxiolysis) to general anesthesia.
  • Minimal sedation is also known as anxiolysis.
  • Minimal sedation is a drug-induced state during which the patient responds normally to verbal commands.
  • Cognitive function and coordination may be impaired. Ventilatory and cardiovascular functions are typically unaffected.
  • Moderate sedation/analgesia unconscious sedation
  • Spontaneous ventilation is typically adequate. Cardiovascular function is usually maintained.
  • Deep sedation/analgesia is a drug-induced depression of consciousness during which the patient cannot be easily aroused, but responds purposefully (not a reflex withdrawal from a painful stimulus) following repeated or painful stimulation.
  • Independent ⁇ eflon ⁇ yla function may be impaired and the patient may require assistance to maintain a patent
  • sedation e.g., long-term sedation, continuous sedation
  • a prolonged period of time e.g., 1 day, 2 days, 3 days, 5 days, 1 week, 2 week, 3 weeks, 1 month, 2 months.
  • Long-term sedation agents may have long duration of action. Sedation agents in the ICU may have short elimination half-life.
  • Procedural sedation and analgesia is a technique of administering sedatives or dissociative agents with or without analgesics to induce a state that allows a subject to tolerate unpleasant procedures while maintaining cardiorespiratory function.
  • the invention encompasses all variations, combinations, and permutations in which one or more limitations, elements, clauses, and descriptive terms from one or more of the listed claims is introduced into another claim.
  • any claim that is dependent on another claim can be modified to include one or more limitations found in any other claim that is dependent on the same base claim.
  • elements are presented as lists, e.g., in Markush group format, each subgroup of the elements is also disclosed, and any element(s) can be removed from the group. It should it be understood that, in general, where the invention, or aspects of the invention, is/are referred to as comprising particular elements and/or features, certain embodiments of the invention or aspects of the invention consist, or consist essentially of, such elements and/or features.
  • the compounds provided herein may be isolated and purified by known standard procedures. Such procedures include (but are not limited to) recrystallization, column chromatography, HPLC, or supercritical fluid chromatography (SFC). The following schemes are presented with details as to the preparation of representative heteroaryls and heterocyclyls that have been listed herein.
  • the compounds provided herein may be prepared from known or commercially available starting materials and reagents by one skilled in the art of organic synthesis.
  • Exemplary chiral columns available for use in the separation/purification of the enantiomers/diastereomers provided herein include, but are not limited to, CHIRALPAK® AD- 10, CHIRALCEL® OB, CHIRALCEL® OB-H, CHIRALCEL® OD, CHIRALCEL® OD-H, CHIRALCEL® OF, CHIRALCEL® OG, CHIRALCEL® OJ and CHIRALCEL® OK.
  • the stereochemistry assigned herein may be tentatively (e.g., randomly) assigned.
  • a C21 position may be drawn in the“R” configuration when the C21 position is in the“S” configuration.
  • 1 H-NMR reported herein may be a partial representation of the full NMR spectrum of a compound, e.g., a compound described herein.
  • the reported 1 H NMR may exclude the region between ⁇ (ppm) of about 1 to about 2.5 ppm.
  • Step 1 Synthesis of A3.
  • Ph 3 PCH 2 CH 2 Br 60.41 g, 163.16 mmol
  • THF 40 mL
  • t-BuOK 18.31 g, 163.16 mmol
  • A2 10 g, 32.63 mmol
  • THF 40 mL
  • Step 2 Synthesis of A4. To a solution of A3 (4.2 g, 13.19 mmol) and 1H-imidazole (1.80 g, 26.37 mmol) in DMF (35 mL) was added TBSCl (3.98 g, 26.37 mmol). The mixture was stirred at 30 o C overnight. TLC showed the starting material was consumed completely. The resulting mixture was added brine (35 mL) and the resulting solution was extracted with EtOAc (20 mL * 3). The combined organic layers was washed with brine (25 mL * 3), dried over anhydrous Na 2 SO 4 and concentrated under vacuum to give crude, which was purified by column
  • Step 4 Synthesis of A6.
  • a solution of 9-BBN 210 mL, 0.5 M
  • THF a solution of A5 (4.7 g, 10.52 mmol) in THF (30 mL) dropwise with stirring at ice-bath under N 2 atmosphere.
  • the mixture was stirred at 60 o C overnight.
  • the reaction was cooled at ice-bath, and 10% NaOH aqueous (24 mL) was added dropwise, then 30% H 2 O 2 aqueous (12 mL) was added dropwise, the resulting solution was stirred at 15 o C for 3h.
  • the mixture was quenched with saturated Na 2 S 2 O 3 aqueous (50 mL).
  • Step 5 Synthesis of A7. To a solution of A6 (2.5 g, 5.38 mmol) in Dichloromethane (20 mL) was added Dess-Matin (1.28 g, 3.01 mmol) under N 2 atmosphere. The mixture was stirred at 40 o C overnight. TLC showed the starting material was consumed completely. The mixture was quenched with saturated Na 2 S 2 O 3 aqueous (25 mL). The resulting mixture was extracted with EtOAc (20 mL * 3).
  • Step 6 Synthesis of A8. To a solution of A7 (2.7 g, 5.83 mmol) in dichloromathane (30 mL) was added TFA (5 mL, 67.09 mmol) dropwise. The mixture was stirred at 15 o C for 1h. TLC showed that the reaction was completed. The mixture was quenched with saturated Na 2 HCO 3 aqueous (25 mL). The resulting solution was extracted with Dichloromathane (20 mL * 3).
  • Step 7 Synthesis of A9. To a solution of A8 (0.7 g, 2.01 mmol) in MeOH (20 mL) was added HBr aqueous (5 drops, 40% in water). Then Br 2 (353.07 mg, 2.21 mmol) was added with stirring. The mixture was stirred at 15 o C for 3h. TLC showed that the reaction was completed. The mixture was quenched with saturated NH 4 Cl aqueous (15 mL). The resulting solution was extracted with dichloromathane (20 mL * 3). The combined organic layers was washed with brine (15 mL) and dried over anhydrous Na 2 SO 4 and concentrated under vacuum to give crude of A9 (1.0 g), which was used next step without further purification.
  • Step 8 Synthesis of 4 and 5.
  • 1,2,3-triazole (824.10 mg, 11.93 mmol) in THF (15 mL) was added LiHMDS (11.93 mL, 11.93 mmol, 1 M in THF) at ice-bath under N 2 atmosphere. The mixture was stirred at 0 o C for 30 min. Then the solution of A9 (850 mg, 1.99 mmol) THF (5 mL) was added and the reaction was stirred at 15 o C for 4h. TLC showed that the reaction was completed. The mixture was quenched with saturated NH 4 Cl aqueous (15 mL). The resulting solution was extracted with EtOAc (20 mL * 3). The combined organic layers was washed with brine (15 mL * 4) and dried over anhydrous Na 2 SO 4 and concentrated under vacuum to give crude, which was purified by column chromatography on silica gel (ethyl)
  • Step 1 Synthesis of A11. Potassium tert-butoxide (3.24 g, 28.7 mmol) in THF (90 mL) was added into a suspension of ethyltriphenylphosphonium bromide (10.66 g, 28.7 mmol) in THF (20 mL) dropwise at 0 o C. The resulting reaction mixture was warmed to room temperature (15 o C) and stirred for an additional 1 h. Then a solution of compound A10 (2.5 g, 7.18 mmol) in THF (20 mL) was introduced slowly to the above suspension at 0 o C. The solution was stirred for an additional 10-20 min and the mixture was allowed to warm to ambient temperature slowly. Stirring was continued for about 2 h.
  • Step 2 Synthesis of A12. To a solution of compound A11 (2 g, 5.5 mmol) in DMF (20 mL) was added imidazole (1.12 g, 16.5 mmol) and TBSCl (1.65 g, 11 mmol). Then the solution was heated to 30 o C and maintained the temperature for 16 h. TLC and LCMS showed that the reaction was complete. Brine and EtOAc were added into the solution and separated. The combined organic layer was washed with brine (100 mL*3). The organic layer was dried over anhydrous Na 2 SO 4 and concentrated. The residue was purified by flash chromatography eluting with petroleum ether to give A12 (2.88 g, 99 %) as a white solid.
  • Step 3 Synthesis of A13.
  • a solution of BH 3 in THF (20 mmol, 20 mL, 1M in THF) was added into a solution of A12 (1 g, 2.1 mmol) in THF (20 mL).
  • the resulting solution was stirred at 45 o C for 20 h.
  • the mixture was cooled in an ice bath and then saturated saturated NaHCO 3 solution was added slowly, followed by the addition of H 2 O 2 (30 %, 40 mL).
  • the resulting suspension was stirred at 30 o C for 3 h. It was extracted with EtOAc (30 mL*2).
  • the combined organic layer was dried over anhydrous Na 2 SO 4 and concentrated the solvent.
  • Step 4 Synthesis of A14. To a solution of A13 (600 mg, 1.2 mmol) in CH 2 Cl 2 (25 mL) was added Dess-Martin reagent (1.55 g, 3.6 mmol). The mixture was stirred at 25 o C for 1 h. TLC showed that the reaction was complete. The reaction was quenched by the addition of saturated Na 2 SO 3 solution and separated. The organic layer was washed with saturated NaHCO 3 solution and brine. The combined organic layer was dried over anhydrous Na 2 SO 4 and concentrated the solvent to give the crude A14 (690 mg) as a pale yellow oil.
  • Step 5 Synthesis of A15. To a solution of A14 (600 mg, 1.20 mmol) in DCM (10 mL) was added TFA (2 mL). The resulting solution was stirred at 25 o C for 3.5 h. TLC showed that the reaction was complete. Then brine was added into the solution. The organic layer was washed with saturated NaHCO 3 solution and brine. The organic layer was dried over anhydrous Na 2 SO 4 and concentrated. The residue was dissolved with THF. Then aqueous LiOH solution was added. The resulting solution was stirred at 25 o C for 16 h. TLC and LCMS showed that the reaction was complete. The solvent was evaporated. The residue was washed with EtOAc and H 2 O. The organic layer was washed with brine. The organic layer was dried over anhydrous Na 2 SO 4 and concentrated to give the crude A15 (480 mg) as a pale yellow oil.
  • Step 6 Synthesis of A16. To a solution of A15 (430 mg, 1.14 mmol) in MeOH (10 mL) was added HBr (0.08 mL) and Br 2 (0.16 mL) in MeOH (1 mL). The resulting solution was stirred at 25 o C for 1.5 h. TLC showed that the reaction was complete. The solvent was evaporated and the residue was extracted with DCM (50 mL*2). The organic layer was washed with brine. The organic layer was dried over anhydrous Na 2 SO 4 and concentrated to give the crude A16 (510 mg) as a pale yellow oil.
  • Step 1 Synthesis of A24.
  • compound (8S,9S,10R,13S,14S,17S)-17-acetyl- 10,13-dimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren- 3(2H)-one (A23, 30g, 95.5 mmol) in 3-Picoline (150 mL) was added Pd/C (10%, 3.0g) under argon.
  • the suspension was degassed under vacuum and purged with H 2 several times.
  • the mixture was stirred under H 2 (1atm) at 25 o C for 12 h.
  • Step 2 Synthesis of A25. To a solution of compound 2,6-di-tert-butyl-4-methylphenol (A24, 120 g, 549 mmol) in toluene (400 mL) was added a solution of AlMe 3 (137 mL, 274 mmol, 2 M ) at room temperature, at which time the methane gas was evolved immediately. The resulting mixture was stirred at room temperature for 1 h.
  • Step 3 Synthesis of A26.
  • To a stirred solution of (3S,14S,17S)-3-hydroxy-3,10,13- trimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)ethanone A25 (6.0 g, 18.04 mmol) in MeOH (100 mL) was added HBr(0.29 g, 3.61 mmol) , then Br 2 (1.35 mL, 27.06 mmol) was added dropwise. The mixture was stirred at room temperature for 2 hours. TLC showed the reaction was complete. The mixture was quenched by a saturated aqueous NaHCO 3 and adjusted to pH 7. Then water (200 mL) was added and the solid was precipitated.
  • Step 4 Synthesis of 10. To a mixture of 2-bromo-1-((3R,5R,8R,9S,10S,13S,14S,17S)-3- hydroxy-3,10,13-trimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)ethanone (A26, 100 mg, 0.24 mmol) and K 2 CO 3 (70 mg, 0.48 mmol) in 3 mL Acetone was added 1H-pyrazole-4- carbonitrile (30 mg, 0.36 mmol) at 25 o C. The reaction mixture was stirred at the 40 o C for 3 h. The reaction mixture was filtered and the filtrate was concentrated in vacuum.
  • Step 1 Synthesis of A28. To a solution of A27 (15 g, 47 mmol) in EtOH (150 mL) was added Pd/C (1.5 g, 10 %), The mixture was stirred at 40 o C for 12 hours under H 2 (45 psi). The mixture was filtered to give the organic layer and concentrated to give A28 (7.5 g) as a white solid.
  • Step 2 Synthesis of A29.
  • A28 7.5 g, 23.6 mmol
  • TsCl 6.79 g, 35.4 mmol
  • the mixture was stirred at 40 o C for 6 hours. Water was added slowly, then the white solid was precipitated. The white solid was filtered, and washed with HCl (1 M) (200mL*3), then with water (200mL*3). The filtrate was dried by reduced pressure to give A29 (9.5 g) as a yellow solid.
  • Step 3 Synthesis of A30. To a stirred solution of collidine (100 mL) was added A29 (9.5 g, 20 mmol). The mixture was stirred at 130 o C for 4 hours. After TLC showed the starting material was consumed, the mixture was treated with H 2 SO 4 (500 mL, 10%) and the solid was
  • Step 4 Synthesis of A31.
  • m-CPBA 6.8 g, 39.6 mmol
  • the mixture was stirred at 0 o C for 1 hour, then at 15 o C for 12 hours.
  • Step 5 Synthesis of A32.
  • a solution of the A31 (1 g, 3.16 mmol) in EtOH (20 mL) was added 12 drops of fuming sulfuric acid. The mixture was stirred at 19 o C for 3 h, the reaction mixture was quenched by aqueous NaHCO 3 and evaporated to low volume. The mixture was treated with water and extracted with EtOAc (50 mL*3). The organic layer was washed with brine, dried over Na 2 SO 4 , filtered and evaporated to give the A32 (0.95 g) as white solid.
  • Step 6 Synthesis of A33. To a solution of A32 (0.95 g, 2.6 mmol) in MeOH (50 mL) was added aq. HBr (0.2 mL, 48% in water) and Br 2 (0.5 g, 3.14 mmol). The mixture was stirred at 19 o C for 2 h. Then the mixture was quenched with saturated aqueous NH 4 Cl (20 mL). The mixture was concentrated, added water (50 mL) and extracted with EtOAc (50 mL*3). The organic phase was dried over Na 2 SO 4 and concentrated to give crude product.
  • aq. HBr 0.2 mL, 48% in water
  • Br 2 0.5 g, 3.14 mmol
  • Step 7 Synthesis of 40.
  • ethyl 1H-pyrazole-3-carboxylate 158 mg, 1.12 mmol.
  • the mixture was stirred at 20 o C for 0.5 h under N 2 .
  • a solution of A33 100 mg, 0.22 mmol) in DMF (4 mL)
  • Step 1 Synthesis of A34. To a solution of 2 (60 mg, 0.14 mmol) in CH 2 Cl 2 (4 mL) was added Dess-Martin reagent (0.12 g, 0.28 mmol) at 0 o C. The reaction mixture was stirred at 30 o C for 1.5h. After TLC showed that the starting material was consumed completely, the mixture was quenched with a mixture of aqueous NaHCO 3 and aqueous Na 2 S 2 O 3 (5 mL). The mixture was extracted with CH 2 Cl 2 (15 mL). The organic layer was washed with brine (8 mLx2), dried over Na 2 SO 4 and concentrated in vacuum.
  • Step 2 Synthesis of 42. To a stirred solution of MAD (182.2 mg, 0.56 mmol) in 5 mL of toluene was added dropwise a solution of A34 (0.1 g, 0.24 mmol) in toluene( 15 mL) at -78 o C during a period of 1 h under nitrogen. After stirring at the same temperature for 0.5 h, a solution of MeMgBr (0.52 mL, 1.4 mmol) was added dropwise at -78 o C. The reaction was warmed to - 40 o C and stirred for 3 h. After TLC showed the reaction was complete, the reaction was poured into aqueous NH 4 Cl and extracted with EtOAc (30 mL). The organic layer was dried over Na 2 SO 4 , filtered and concentrated in vacuum. The product was purified by column
  • Example 24 Synthesis of 47 and 48. The title compounds were prepared according to Example 5, step 4.
  • Example 27 Synthesis of 54 and 55. The title compounds were prepared according to Example 5, step 4.
  • Step 1 Synthesis of A35 and A36.
  • K 2 CO 3 200 mg, 1.45 mmol, 2.0 eq
  • 2H-1,2,3-triazole 60.3 mg, 874 umol, 1.2 eq
  • the reaction mixture was stirred at 25°C for 16 hrs. Then, TLC showed the material was disappeared.
  • the mixture was diluted with water (20 mL) and extracted with EA (30 mL ⁇ 2). The combined organic layers were washed with brine (30 mL), dried over Na 2 SO 4 and concentrated in vacuum.
  • Step 2 Synthesis of 56 and 57.
  • A35 120 mg, 300 umol, 1.00 eq
  • KOH 33.6 mg, 600 umol, 2 eq
  • THF 4.00 mL
  • CH3I 51 mg, 360 umol, 1.2 eq
  • the reaction was quenched with water and extracted with EA (2 x 20 mL).
  • the combined organic phase was washed with brine and dried over Na 2 SO 4 , filtered and concentrated to give crude product.
  • Step 7 Synthesis of A37 and A38.
  • K 2 CO 3 268 mg, 1.94 mmol
  • 2H-benzo[d][1,2,3]triazole 138 mg, 1.16 mmol
  • TLC TLC showed the material was disappeared and the mixture was diluted with water (20 mL) and the mixture was extracted with EA (20 mL ⁇ 2).
  • the combined organic layers were washed with brine (30 mL), dried over Na 2 SO 4 and concentrated in vacuum.
  • Step 7 Synthesis of 60 and 61.
  • A38 95 mg, 211 umol
  • KOH 23.6 mg, 422 umol
  • THF 3.00 mL
  • CH 3 I 35.9 mg, 253 umol
  • Step 7 Synthesis of 62 and 63.
  • A37 290 mg, 6444 umol, 1.00 eq
  • KOH 71.8 mg, 1280 umol, 2 eq
  • THF 6.00 mL
  • CH 3 I 109 mg, 772 umol, 1.2 eq
  • Step 1 Synthesis of 70. To a solution of A26 (300mg, 0.729 mmol) in acetone (2 mL) was added 4-(methylthio)-1H-py(247 mg,2.17 mmol), followed by K2CO3 (200 mg, 1.45mmol). The resulting reaction mixture was stirred at 40 o C for 16 hours, at which point LCMS indicated the starting material was consumed completely. The mixture was diluted with water (10 mL) and then extracted with EtOAc (8 mL*3). The combined organic phases were concentrated to give a residue, which was purified by HPLC.
  • Step 2 Synthesis of 72 and 73.
  • A39 150 mg, 354 umol, 1.00 eq
  • KOH 39.7 mg, 708 umol, 2 eq
  • THF 4.00 mL
  • CH 3 I 60.1 mg, 424 umol, 1.2 eq
  • the reaction was quenched with water and extracted with EA (2*30 mL), the combined organic phase was washed with brine and dried over Na 2 SO 4 , filtered and concentrated to give crude product.
  • the residue was purified by Prep-HPLC (0.5%HCl) to afford 65 mg (P1 and P2, mixture) product.
  • the mixture product was purified by SFC (0.2% NH4OH) to afford 1-((R) -1-((3R, 5R, 8R, 9S, 10S, 13S, 14S, 17S)-3-hydroxy-3, 10, 13-trimethylhexadecahydro-1H-cyclopenta[a] phen anthren-17-yl)-1-oxopropan-2-yl)-1H-pyrazole-4-carbonitrile (20 mg, 45.5 umol) and 1-((S)-1- ((3R,5R,8R,9S,10S,13S,14S,17S)-3-hydroxy -3,10,13-trimethylhexadecahydro-1H- cyclopenta[a]phenanthren-17-yl)-1-oxopropan-2-yl)-1H-pyrazole-4-carbonitrile (35 mg, 79.9 umol) as a white solid.
  • Example 36 Synthesis of 77 and 78. The title compounds were prepared according to Example 5, step 4.
  • Step 1 Synthesis of A41.
  • A40 21 g, 66.3 mmol
  • THF 300 mL
  • Pd/C dry, 10%, 2.1 g
  • the reaction mixture was stirred for 16 h at 50 o C in H 2 atmosphere (50 psi).
  • HNMR showed the starting material was consumed, and desired product was produced
  • the catalyst was removed by suction, and the filtrate was concentrated to give A41 (21 g) as white solid, which was used for next step directly without further purification.
  • Step 2 Synthesis of A42.
  • A41 21 g, 65.9 mmol
  • DCM 300 mL
  • Dess-Martin reagent 41.9 g, 98.8 mmol
  • the mixture was stirred for 3h at 25 o C.
  • H NMR showed the starting material was consumed, and desired product was produced.
  • the reaction was quenched with Na 2 S 2 O 3 (3 g), saturated NaHCO 3 (50 mL) solution, dried over Na 2 SO 4 (10 g) and concentrated to give A42 (20 g) as white solid, which was used for next step directly without further purification.
  • Step 2 Synthesis of 90 and 91.
  • KOH 28 mg, 0.5 mmol
  • MeI 42.5 mg, 0.3 mmol
  • the final reaction mixture was stirred at 25 o C for 1 hour.
  • LCMS indicated the reaction was finished.
  • water 10 mL
  • EtOAc 5 mL*2
  • Step 1 Synthesis of 96 and 97.
  • A44 0.4 g, 0.972 mmol
  • acetone 5 mL
  • K 2 CO 3 267 mg, 1.94 mmol
  • the resulting reaction mixture was stirred at 25 o C for 16 hours. TLC indicated the reaction was finished.
  • To the mixture was added water (5 mL) and then extracted with EtOAc (5 mL*3).
  • Step 3 Synthesis of 100, 101, and 102.
  • KOH 49.7 mg, 0.88 mmol
  • MeI 126 mg, 0.88 mmol
  • Step 1 Synthesis of AA2: To a solution of Me 3 SOI (30.1 g, 137 mmol) in THF (200 mL) in a flask was added t-BuOK (15.3 g, 137 mmol), and the reaction mixture was stirred at 25 o C for 0.5 h. (5S,8R,9S,10S,13S,14S,17S)-17-hydroxy-10,13-dimethyltetradecahydro-1H- cyclopenta[a]phenanthren-3(2H)-one (AA1, 20 g, 68.8 mmol) was added, and the reaction was stirred for 2 h at 25 o C.
  • Compound A50 was prepared according to Example 47, step 2.
  • Compound A60 was prepared according to Example 47, step 7.
  • Compound A55 was prepared according to Example 67.
  • Example 96 Synthesis of 171.
  • Compound 170 was prepared as described in Example 96. To a solution of 170 (140 mg, 0.338 mmol) in DCM (5 mL) was added DMAP (41.2 mg, 0.338 mmol), acetic anhydride (69.0 mg, 0.676 mmol) and triethylamine (68.4 mg, 0.676 mmol). The mixture was stired at 25 o C for 16 h, at which point LCMS showed that starting material was consumed completely. The mixture was diluted with water (6 mL) and EtOAc (8 mL), and extracted with EtOAc (9 mL * 2). The combined organic phase was washed with aq.
  • A55 191 192 The title compounds were prepared according to Example 67.

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  • Steroid Compounds (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)

Abstract

L'invention concerne des stéroïdes neuroactifs de formule (I) ou un sel pharmaceutiquement acceptable de ceux-ci. Dans cette formule, (II), A, R1, R2, R3a, R4a, R4b, R5, R7a, et R7b sont tels que définis dans la description. Selon certains modes de réalisation, ces composés se comportent comme des modulateurs GABA. La présente invention concerne en outre des compositions pharmaceutiques comprenant un composé de la présente invention et des méthodes d'utilisation et de traitement, par exemple, pour l'induction d'une sédation et/ou d'une anesthésie.
PCT/US2015/056054 2014-10-16 2015-10-16 Compositions et méthodes pour traiter des troubles du snc WO2016061527A1 (fr)

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CN202310812016.1A CN117024501A (zh) 2014-10-16 2015-10-16 靶向cns障碍的组合物和方法
CN202310824285.XA CN117024502A (zh) 2014-10-16 2015-10-16 靶向cns障碍的组合物和方法
US15/519,480 US10577390B2 (en) 2014-10-16 2015-10-16 Compositions and methods for treating CNS disorders
MX2021004492A MX2021004492A (es) 2014-10-16 2015-10-16 Composiciones para el tratamiento de trastornos del snc.
JP2017520471A JP6909155B2 (ja) 2014-10-16 2015-10-16 Ｃｎｓ障害を処置するための組成物および方法
EP15851530.4A EP3206494A4 (fr) 2014-10-16 2015-10-16 Compositions et méthodes pour traiter des troubles du snc
SG11201703073UA SG11201703073UA (en) 2014-10-16 2015-10-16 Compositions and methods for treating cns disorders
BR112017007902-0A BR112017007902B1 (pt) 2014-10-16 2015-10-16 Composto e seu sal, composição farmacêutica e uso do referido composto e seu sal na fabricação de um medicamento para o tratamento de distúrbios do sistema nervoso central
MX2017005002A MX2017005002A (es) 2014-10-16 2015-10-16 Composiciones y metodos para el tratamiento de trastornos del snc.
RU2017116732A RU2733756C2 (ru) 2014-10-16 2015-10-16 Композиции и способы для лечения расстройств цнс
MYPI2017000555A MY190408A (en) 2014-10-16 2015-10-16 Compositions and methods for treating cns disorders
KR1020177013004A KR102612943B1 (ko) 2014-10-16 2015-10-16 Cns 장애의 치료를 위한 조성물 및 방법
EP21160969.8A EP3885352A1 (fr) 2014-10-16 2015-10-16 Un composé, ses compositions et ce composé pour le traitement de troubles du système nerveux central
NZ731034A NZ731034A (en) 2014-10-16 2015-10-16 Compositions and methods for treating cns disorders
CN201580067540.4A CN107404877A (zh) 2014-10-16 2015-10-16 靶向cns 障碍的组合物和方法
AU2015331749A AU2015331749A1 (en) 2014-10-16 2015-10-16 Compositions and methods for treating CNS disorders
KR1020237042099A KR20230170816A (ko) 2014-10-16 2015-10-16 Cns 장애의 치료를 위한 조성물 및 방법
CA2964766A CA2964766A1 (fr) 2014-10-16 2015-10-16 Compositions et methodes pour traiter des troubles du snc
IL251721A IL251721B (en) 2014-10-16 2017-04-13 Compounds and preparations including them for the treatment of diseases of the central nervous system
PH12017500711A PH12017500711A1 (en) 2014-10-16 2017-04-17 Compositions and methods for treating cns disorders
CONC2017/0004649A CO2017004649A2 (es) 2014-10-16 2017-05-08 Esteroides neuroactivos para trastornos del snc
US16/206,472 US20190177358A1 (en) 2014-10-16 2018-11-30 Compositions and methods for treating cns disorders
US16/748,117 US11530237B2 (en) 2014-10-16 2020-01-21 Compositions and methods for treating CNS disorders
AU2020202892A AU2020202892B2 (en) 2014-10-16 2020-04-30 Compositions and methods for treating CNS disorders
AU2021218132A AU2021218132B2 (en) 2014-10-16 2021-08-19 Compositions and methods for treating CNS disorders
US17/695,033 US11542297B2 (en) 2014-10-16 2022-03-15 Compositions and methods for treating CNS disorders
US17/694,896 US20220213137A1 (en) 2014-10-16 2022-03-15 Compositions and methods for treating cns disorders
IL291533A IL291533A (en) 2014-10-16 2022-03-20 Compounds and preparations including them for the treatment of diseases of the central nervous system
US17/971,865 US20230113666A1 (en) 2014-10-16 2022-10-24 Compositions and methods for treating cns disorders
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JP2017531019A (ja) 2017-10-19
JO3724B1 (ar) 2021-01-31
MX2021008583A (es) 2021-08-11
CO2017004649A2 (es) 2017-11-10
JP2023071871A (ja) 2023-05-23
US20200392177A1 (en) 2020-12-17
US20220213137A1 (en) 2022-07-07
US20230113666A1 (en) 2023-04-13
SG11201703073UA (en) 2017-05-30
AR102306A1 (es) 2017-02-15
BR112017007902B1 (pt) 2023-12-05
JP6909155B2 (ja) 2021-07-28
US10577390B2 (en) 2020-03-03
CN107404877A (zh) 2017-11-28
IL251721A0 (en) 2017-06-29
MX2021004492A (es) 2022-12-05
BR112017007902A2 (pt) 2018-11-06
TW201629082A (zh) 2016-08-16
AU2021218132A1 (en) 2021-09-09
KR20230170816A (ko) 2023-12-19
NZ731034A (en) 2024-02-23
PE20170925A1 (es) 2017-07-13
JP2022009567A (ja) 2022-01-14
KR20170065661A (ko) 2017-06-13
TWI762436B (zh) 2022-05-01

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